Answer: 10 seconds for the car to go from a velocity of 10 m/s to 30 m/s with an acceleration of 2 m/s^2.
Explanation:
To calculate the time it takes for a car with an acceleration of 2 m/s^2 to go from a velocity of 10 m/s to a velocity of 30 m/s, we can use the equation:
time = (final velocity - initial velocity) / acceleration
In this case:
time = (30 m/s - 10 m/s) / 2 m/s^2
time = 20 m/s / 2 m/s^2
time = 10 s
Therefore, it takes 10 seconds for the car to go from a velocity of 10 m/s to 30 m/s with an acceleration of 2 m/s^2.
Why is it important to keep the temperature and the
amount of water the same when testing surface area?
Using mass and speed data from Example 8.1 and assuming that the football player catches the ball with his feet off the ground with both of them moving horizontally, calculate: (a) the final velocity if the ball and player are going in the same direction and (b) the loss of kinetic energy in this case. (c) Repeat parts (a) and (b) for the situation in which the ball and the player are going in opposite directions. Might the loss of kinetic energy be related to how much it hurts to catch the pass
Calculator for Velocity: v = u + at. Kinetic energy loss is equal to K=M1M22(M1+M2).
What is the straightforward meaning of velocity?The displacement that only an objects or particle experiences with regard to the time is expressed vectorially as velocity. The metres per second (m/s) is the accepted unit of fluid velocity (also known as speed).
What is an illustration of velocity?Velocity can be defined as the rate when something that moves in a specific direction. as the tempo of a car driving northwest on a highway or the pace at which a rocket takes off.
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a helicopter blade spins at exactly 110 revolutions per minute. its tip is 5.00 m from the center of rotation. (for each answer, enter a number.) (a) calculate the average speed (in m/s) of the blade tip in the helicopter's frame of reference. 3455.8 incorrect: your answer is incorrect. m/s (b) what is its average velocity (in m/s) over one revolution?
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The average velocity can be calculated as 3455.8 m/s.
What is average velocity?Average velocity is the rate at which an object's position changes over time. It is calculated by taking the displacement (change in position) over the change in time. Average velocity can be thought of as the object's overall speed in a certain direction.
The average velocity of the blade tip in the helicopter's frame of reference can be calculated by taking the circumference of the circle of rotation (2*pi*5.00 m) and dividing it by the time it takes for the blade to make one revolution (1/110 revolutions per minute). So the average velocity can be calculated as:
Average velocity = (2 * pi * 5.00 m) / (1/110 revolutions per minute)
= (2 * pi * 5.00 m) * (110 revolutions per minute)
= 3455.8 m/s
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c) The value of the membrane potential at the peak of the action potential is +25 mV. Which ion species is most conductive at the peak of the action potential?
During the peak of the action potential, the voltage-gated sodium channels open, allowing a large influx of positively charged sodium ions (Na+) into the cell, which causes the membrane potential to rapidly become more positive and Na+ ions are the most conductive.
The peak of the action potential is characterized by a large influx of positively charged ions, primarily Na+ ions. The value of the membrane potential at the peak of the action potential is +25 mV. This positive value indicates that the inside of the cell is more positively charged relative to the outside of the cell.
During the peak of the action potential, the voltage-gated sodium channels open, allowing a large influx of positively charged sodium ions (Na+) into the cell, which causes the membrane potential to rapidly become more positive.
This rapid depolarization of the membrane is the result of the increased conductivity of the Na+ ions. Therefore, at the peak of the action potential, Na+ ions are the most conductive.
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A bungee jumper with mass 65.0 kg jumps from a high bridge. After arriving at his lowest point, he oscillates up and down, reaching a low point seven more times in 43.0 s. He finally comes to rest 25.0 m below the level of the bridge. Estimate the spring stiffness constant and the unstretched length of the bungee cord assuming SHM.
The spring stiffness constant is 26.2 N/m and the unstretched length of the bungee cord is 0.69 m.
What is spring constant?The definition of the spring constant is related to Hooke's law and simple harmonic motions. In order to define the spring constant and comprehend how it operates, we must first examine Hooke's law. As long as the applied load is below the elastic limit, the theory of elasticity states that when a load is applied to a spring, it will naturally extend proportionally. We now understand that when an object is subjected to force, it tends to deform in some way.
Given that;
mass of the bungee jumper, m = 65 kg
time of motion, t = 43 s
distance to come to rest, d = 25 m
The period of oscillation of bungee jumper is calculated as;
T = t/n
T = 43/7
T = 6.14 s
The spring stiffness constant is calculated as;
T = [tex]$ 2\pi \sqrt{\frac{m}{k} }[/tex]
[tex]$ 6.14 = 2(\frac{22}{7}) \sqrt{\frac{25}{k} }[/tex]
k = 26.2 N/m
The extension of the cord is calculated as;
F = kx
mg = kx
x = mg/k
x = [tex]$\frac{\left(65\times 9.8\right)}{26.2}[/tex]
x = 24.31 m
The unstretched length of the bungee cord is calculated as;
Δx = l₂ - l₁
l₁ = l₂ - Δx
l₁ = 25 - 24.31
l₁ = 0.69 m
Thus, The spring stiffness constant is 26.2 N/m and the unstretched length of the bungee cord is 0.69 m.
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during a recent winter storm, bales of hay had to be dropped from an airplane to a herd of cattle below. assume the airplane flew horizontally at an altitude of 210 m with a constant velocity of 47.0 m/s and dropped one bale of hay every 2.0 seconds. it is reasonable to assume that air resistance will be negligible for this situation. about how far apart from each other will the bales land on the ground?
According to the question,The bales will land on the ground about 94 meters apart from each other.
What is the meters ?
Meters are a unit of measurement for length in the metric system. The worldwide standard for length is the meter, which is equal to 100 centimeters or 1/1000 of a kilometer. The symbol for meters is m. Meters are commonly used to measure the length of objects, such as the height of a person or the width of a room. Meters are also used to measure the distance between two points, such as the distance between two cities.
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A car travels for 3 hours to a distant city 200 km due East. What was its (1) speed, (2) velocity?
Answer:
v=66.6km/hr
V=66.6km/hr due east
Explanation:
[tex]v= \frac{s}{t} [/tex]
given
s=200km
t=3hr
required
v=?
solution
v=s/t
v=200km/3hr
v=66.6km/hr
The cost of having a package delivered has a base fee of $9.70. Every pound over 5 lbs cost an additional $0.46 per pound. Write a linear model that represents the cost, C, for the total weight, w, in pounds of the package. Assume w Greater-than-or-equal-to 5 lbs.
C = 9.70 + 0.46(w - 5). This is a linear equation where C is the total cost, 9.70 is the fixed base fee, w is the weight of the package in pounds, and 0.46 is the additional cost per pound over 5 lbs. The term (w - 5) represents the weight of the package that exceeds 5 lbs, and the 0.46 is multiplied by this value to calculate the additional cost.
What is linear equation?A linear equation is an equation that can be written in the form of y = mx + b, where y is the dependent variable, x is the independent variable, m is the slope of the line, and b is the y-intercept. In this equation, the slope represents the rate of change of the dependent variable with respect to the independent variable, and the y-intercept is the point where the line crosses the y-axis. Linear equations can be represented graphically as a straight line, and the slope and y-intercept can be used to determine the equation of the line.
In the case of the cost equation provided, C is the dependent variable, and w is the independent variable. The slope is represented by the coefficient of w, which is 0.46, which means the cost will increase by 0.46 dollars for every pound added to the weight of the package. The y-intercept, which is the cost of the package when the weight is zero, is represented by the constant term 9.70.
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Please help me, thank you!
Answer:
deeper red
Explanation:
hope this helps
how long does it take a plane, traveling at a constant speed of 180 m/s, to fly once around a circle whose radius is 2700 m?
It would take the plane approx. 93 seconds to fly once around circle, traveling at a constant speed of 180 m/s
What is meant by speed ?Speed is defined as the rate of change of position of object in any direction. Speed is measured as the ratio of distance to the time in which that distance was covered.
The circumference of a circle is 2 * pi * radius, where pi is approximately 3.14. Therefore, circumference of the circle with a radius of 2700 m is:
2 * pi * 2700 m = 16,800 m
Given, constant speed of 180 m/s
As, distance = speed * time
So, time = distance / speed
time = 16,800 m / 180 m/s
So, time = 93.333 seconds or 93 seconds and 20 milliseconds
It would take plane approximately 93 seconds to fly once around the circle, traveling at the constant speed of 180 m/s
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A helicopter flies with a ground speed of 250 km/h If the wind speed is 17 km/h southeast, what is the air speed?
The air speed of the helicopter has the ground speed of 250 km/h is 233 km/h
The ground speed of the helicopter = 250 km/h
The wind speed of the helicopter = 17 km/h
The air speed of the helicopter can be found using the formula,
G = W + A
where G is the ground speed of the helicopter
W is the wind speed of the helicopter
A is the air speed of the helicopter
Let us rearrange the equation in order to get the airspeed,
A = G - W
Let us substitute the known values in the above equation, we get
A = 250 - 17
= 233 km/h
Therefore, the air speed of the air speed is 233 km/h
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you are on a desert island and there are two identical black boxes. one of them is a voltage source, the other is a current source. how can you tell which is which?
One way to determine which black box is a voltage source and which is a current source is by measuring the voltage and current at different points in the circuit, or using multimeter to measure voltage and current.
A voltage source will maintain a constant voltage across its terminals regardless of the current flowing through it, while a current source will maintain a constant current through its terminals regardless of the voltage across it.
Another way is to observe the behavior of the circuit when a load is connected. If the circuit behaves as if the voltage across the terminals is constant, it is likely a voltage source. If the circuit behaves as if the current through the terminals is constant, it is likely a current source.
Additionally, you can use a multimeter to measure the open-circuit voltage and short-circuit current of the black boxes. A voltage source will have a high open-circuit voltage and a low short-circuit current, while a current source will have a high short-circuit current and a low open-circuit voltage.
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What fraction of its electrons have been removed? the density of copper is 8900 kg/m3.
The fraction of its electrons which have been removed is calculated to be 0.02442 × 10⁻⁹.
Given that,
Diameter of the copper ball = 2.00 mm = 0.002 m
Charge on ball = 40 nC = 40 × 10⁻⁹ C
Density of copper = 8900 Kg/m³
Now let us calculate,
The number of electrons removed, n = charge on the ball/charge of an electron
Charge on a single electron = 1.6 × 10⁻¹⁹ C
Thus, n = (40 × 10⁻⁹)/(1.6 × 10⁻¹⁹) = 25 × 10¹⁰ electrons
Mass of copper ball = volume × density = 4/3 π × (d/2)³× 8900 = 4/3 π × (0.02/2)³× 8900 = 0.03726 gm
Molar mass of copper = 63.546 g/mol
Number of mol of copper in 0.03726 grams = 0.03726 / 63.546 = 5.86 × 10⁻⁴ mol
1 mol of a substance has = 6.022 × 10²³ atoms
5.86 × 10⁻⁴ mol of copper contains = 5.86 × 10⁻⁴ × 6.022 × 10²³ atoms = 35.88 × 10¹⁹ atoms
A neutral copper atom has 29 electrons.
So, number of electrons in ball = 29 × 35.88 × 10¹⁹ = 1023.37 × 10¹⁹ electrons.
Hence, the fraction of electrons removed = (25 × 10¹⁰)/(1023.37 × 10¹⁹) = 0.02442 × 10⁻⁹
The given question is incomplete. The complete question is 'A 2.0-mm-diameter copper ball is charged to 40 nC.'
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Explain the working mechanism of a pinhole camera with a help of diagram.
Explanation:
A pinhole camera is the simplest yet most misunderstood camera. It takes amazing pictures, Get yourself a box that has a top and bottom which can be pulled apart 4 x 5 is a good size and available in the gift box department of Dollar Tree store.Poke or drill a small hole 1/8" dia. Put a piece of black electrical tape over the hole and have a small tab on the end so you can grab it and pull it off as the hole becomes the lens and shutter. Put a sheet of film on the bottom "a still scene" works best and pull the black tape off the hold quickly and replace it quickly. (try to use a slow speed film) The picture is done and you can take the film out inside your darkroom and develop it. If you can get ortho cromatic film from a printers office or newspaper that would work best as this type of film can be watched under a red light in the darkroom to see how it is developing so you do not over develop the negative. Ortho film was the firs dry film invented and is sensitive to all colors of light except red so you can watch it being developed in the darkroom under red light.Three identical rocks are launched with identical speeds from the top of a platform of height 0 h . The rocks are launched in the directions indicated above. Rock 1, of mass m, reaches a maximum height hmax after being launched. During the time between the instant rock 1 is launched from height h0 and the instant it returns to height h0, the work done on the rock by the gravitational force is
The work done by the gravitational force on rock 1 can be calculated using the work-energy theorem. This theorem states that the net work done on an object is equal to the change in its kinetic energy.
What is gravitational force?Gravitational force is the attractive force between two objects that is proportional to their masses and inversely proportional to the square of the distance between them. It is the weakest force in nature and is the reason why objects with mass are attracted to each other. This force was first described by Isaac Newton in his law of universal gravitation, which states that the force between two objects is proportional to the product of their masses and inversely proportional to the square of the distance between them.
Since the rock is launched from rest at a height of h0 and then returns to the same height, its kinetic energy does not change and therefore the net work done on the rock is zero. This means that the work done by the gravitational force on the rock is also zero, since the only force acting on the rock is the gravitational force.
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what is the direction of the final position vector r, measured from north? use counterclockwise as the positive angular direction,
By adopting anticlockwise as the positive angular direction, the final position vector, r, has a direction that is measured from the north. North West is the direction. It follows the right hand's thumb rule.
A vector is a physical quantity that has both magnitude and angular direction. It is frequently represented by an arrow that points in the same general direction as the amount and has a length appropriate to the size of the quantity. The direction of the position vector always points away from the vector's origin, in the general case. The position vector that is directed from O to P can be expressed as OP if P (x 1, y 1) is another point in the cartesian coordinate system and O is the origin.
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if you accelerator fails, into which gear should a driver shift? select one: a. neutral (n) b. drive (d) c. park (p) d. reverse (r)
If accelerator fails, into neutral gear a driver should shift. The correct option is A.
What is gear?The amount of engine power available is determined by the gears. While fifth gear has the least pulling force but the widest range of speed, first gear has the most pulling power but the least potential for speed.
Keep calm and move to neutral in the event that the accelerator fails. Consider pressing the gas pedal to see if it reacts. Look for a place to leave the road that is secure. Brake and steer as softly as you can.
Thus, the correct option is A.
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an ice cube is placed in a microwave oven. suppose the oven delivers 105 w of power to the ice cube and that it takes 30200 j to melt it.how long does it take for the ice cube to melt?
It will take 287.6 seconds for the ice cube to melt under the given conditions.
What is melt?Melt is a process in which a solid material is heated to its melting point, causing it to become a liquid. It is a physical process that occurs when a material is heated beyond its melting temperature, resulting in the formation of a liquid.
The amount of time it takes for the ice cube to melt depends on the mass of the ice cube. The equation to calculate this is:
Time (in seconds) = (30200 J)/(105 W x Mass of Ice Cube)
Assuming that the mass of the ice cube is 1 kg, then the time required to melt the ice cube is:
Time (in seconds) = (30200 J)/(105 W x 1 kg)
Time (in seconds) = 287.6 seconds
Therefore, it will take 287.6 seconds for the ice cube to melt under the given conditions.
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It will take 287.6 seconds for the ice cube to melt under the given conditions. This can be solved using the concept of heat.
What is melt?Melt is a process in which a solid material is heated to its melting point, causing it to become a liquid. It is a physical process that occurs when a material is heated beyond its melting temperature, resulting in the formation of a liquid.
The amount of time it takes for the ice cube to melt depends on the mass of the ice cube.
The equation to calculate this is:
Time (in seconds) = (30200 J) / (105 W x Mass of Ice Cube)
Assuming that the mass of the ice cube is 1 kg, then the time required to melt the ice cube is:
Time (in seconds) = (30200 J) / (105 W x 1 kg)
Time (in seconds) = 287.6 seconds
Therefore, it will take 287.6 seconds for the ice cube to melt under the given conditions.
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momentum vectors. 12. An 8 g bullet is fired from a rifle. The bullet passes through a 10 cm plank. This reduces the bullet's velocity from 400 ms west to 300 ms¹ west. a) Calculate the bullet's initial momentum.
The initial momentum of the bullet is 3.2 kg m/s.
What is the principle of conservation of linear momentum?The principle of conservation of linear momentum states that in an isolated system, the total momentum of the system is always conserved.
Based on the law of conservation of linear momentum, the sum of the initial momentum of an object is always equal to the sum of the final momentum of the object.
Pi = Pf
Pi = mv
where;
m is the mass of the objectv is the initial velocity of the objectThe initial momentum of the bullet is calculated as follows;
Pi = ( 400 m/s ) x ( 0.008 kg )
Pi = 3.2 kg m/s.
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Which of the following shows the shape of a position-time graph for an object with constant acceleration?
Answer:
c
Explanation:
The position vs. time graph of an object with constant acceleration is a parabolic curve. The curvature is upward for positive acceleration and downward for negative accelerations.
Answer:
C
Explanation:
The relationship between distance and acceleration is dependent of the square of the time the unit is accelerating: (1/2)*a*t^2, where a is the acceleration and t is the time. Since the time is squared, and it falls on the x axis, each increse in time produces a squared impact on distance.
Why is it important to familiarize the different transferring design methods in embroidery?
please... tle subject po ito pero wala sa choices yung subject maya ginawa ko nalang pong physics because it's required
Why is it important to familiarize the different transferring designs?
Answer:1. To know the best methods and steps on how to transfer designs. This is important for learning embroidery.
2. Try to Improve my skills and learn from my experience.
3. To keep everything organized and clean so that it is easier to work with.
4. By making sure to follow good working habits and make sure to keep my place clean.
To know the best method and steps on how to transfer design. This is important for learning embroidery. It means that there is a critical difference between learning during instruction and the application of that learning in the real world.
Explanation:Hope it helped save your day and don't forget to rate-me down below!Your Best Frend,Edwin
during the brutal mass arrest depicted on page 82, vladek is framed by a panel shaped like a jewish star (star of david). how does this device express his situation at that moment?
uring the brutal mass arrest depicted on page 82, vladek is framed by a panel shaped like a jewish star (star of david). how does this device express his situation at that moment?
The device of framing Vladek with a panel shaped like a Jewish star (Star of David) during the brutal mass arrest depicted on page 82 expresses his situation at that moment as one of persecution and identity.
The Jewish star is a symbol of Jewish identity and heritage, and the fact that Vladek is framed within it highlights the fact that he is being targeted specifically because of his Jewish identity. Additionally, the Jewish star is a symbol of the Holocaust and the persecution of Jews during World War II, so it serves to connect Vladek's experience of being arrested to the larger historical context of the Holocaust. Furthermore, it also serves as a reminder of the dehumanization and persecution of the Jews and the atrocities committed against them by the Nazi regime
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What is the kinetic energy of Usain Bolt if he has a mass of 80 kg and is sprinting at 10 m/s?
Answer: The kinetic energy of Usain Bolt, who has a mass of 80 kg, is 4000 Joules.
Explanation:
What is the kinetic energy of Usain Bolt if he has a mass of 80 kg and is sprinting at 10 m/s?
Data:
m = mass = 80 kg
V = velocity = 10m/s
Ec = Kinetic energy = ?
To calculate the kinetic energy of Usain Bolt, we apply the following formula, substitute data and solve:
Ec = m * v²/2 Ec = (80 kg * (10 m/s)²)/2 Ec = (80 * 100 m²/s²)/2 Ec = 4000 JTo learn at https://brainly.com/question/15579795To learn at https://brainly.com/question/14165786Formula for Kinetic Energy:
[tex]KE=.5mv^2[/tex]
kinetic energy(measured in joules) = .5 * mass(measured in kg) * velocity(measured in m/s)^2
__________________________________________________________
Given:
[tex]m=80kg[/tex]
[tex]v=10m/s[/tex]
[tex]KE=?[/tex]
__________________________________________________________
Finding kinetic energy:
[tex]KE=.5mv^2[/tex]
[tex]KE=.5(80)(10)^2[/tex]
__________________________________________________________
Answer:
[tex]\fbox{4000 Joules}[/tex]
Base your answer on the weather map below, which shows the locations of a high-pressure center (H) and a low-pressure center (L) over a portion of North America. The isolines indicate surface air pressures. Which map shows the most likely location of clouds associated with these pressure centers
The 4th map(see attachment) shows the most likely location of clouds associated with these pressure centers.
What is pressure?The force applied to a substance's boundaries per unit of area is measured as pressure. The Newton per square metre (or pascal) is the accepted SI unit for pressure (Pa). Mathematically:
p = F/A
In general, the collisions between the molecules of a substance and the boundaries of the system result in pressure, also known as the force applied per unit area on the boundaries of a substance. As molecules collide with the walls, forces are generated that attempt to push the walls outward.
The pressure that a system puts on its surroundings is brought on by the forces produced by all of these collisions. In a closed system, pressure acts as a constant intensive variable. It only applies to liquid or gaseous systems.
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as defined in the fundamentals of architecture, chapter 4, orthographic projection, is defined as: a. a means of representing a three-dimensional object in two dimensions b. a means of representing a four-dimensional object in three dimensions c. a means of understanding how sunlight enters a building d. a means of representing a building as it would be seen in real life
A 3D object can be represented utilizing many 2D views of the object using an orthographic projection. Multiviews are another name for orthographic drawings.
What does orthographic projection mean?Three two-dimensional drawings are typically used in an orthographic projection, a standard technique for portraying three-dimensional objects. In each picture, the item is seen from parallel lines that are perpendicular to the plane of the drawing.
What are an orthographic drawing's three major views?Although a sketch can have six different sides, three perspectives are typically sufficient to create a three-dimensional object. They are called the front view, top view, and end view, respectively. These views are also known by the terms plan, elevation, and section.
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an electron with an initial speed of 5.50×105 m/s is brought to rest by an electric field.a)Did the electron move into a region of higher potential or lower potential? b)What was the potential difference that stopped the electron?In Vc)What was the initial kinetic energy of the electron, in electron volts? In eV
The electron will enter into a lower potential region by energy conservation.
What are the ways to conserve energy?Utilizing less energy is a choice and a practice known as energy conservation. When not in use, appliances should be disconnected, lights should be turned off when leaving a room, and walking is preferable to driving.
What is a good illustration of energy conservation?Similarly to this, according to the rule of conservation of energy, energy cannot be created or destroyed. For instance, when a toy car is rolled down a ramp and slams into a wall, kinetic energy is transformed into potential energy.
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in order to slide a heavy desk across the floor at a constant speed, you have to exert a horizontal force of 500 newtons. compare the 500 n horizontal pushing force to the frictional force between the desk and the ground. is the frictional force greater than, less than, or equal to 500 n? explain.
According to question this happend because of the constant speed.
How does frictional force work?Friction refers to the force that prevents two solid objects from sliding or rolling over each other. Although frictional forces, like the traction required to walk while slipping, may be advantageous, they can provide a significant amount of resistance to motion.
What occurs to an object whenever a net force is exerted to it? The formula F net = m*a accelerates!
What does the desk moving at a CONSTANT pace tell you about the acceleration, then? The speed has changed.
m*a = Fnet Fnet Equals 0 because a = 0.
Fnet, the force's total, represents the force's positive direction. Forces in the direction of F added together equal F - friction. friction, or F.
Friction hence equals 500 N in the opposite direction if F = 500 N.
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how many times greater is the intensity of the sound from a 1.0 t mri scanner compared to the intensity of the sound from a vacuum cleaner?
The noise from a 1.0 t mri scanner is five times more intense than the noise from a vacuum cleaner. Intensity of sound is measured as the quantity of sound per unit of perpendicular space.
W/m2, the SI unit for sound intensity, indicates I, the direction in which sound waves travel (watt per square meter). Sound intensity is often measured in Watts per square metre (W/m2). In order to determine how much sound energy a certain amount of noise emits in the air where the listener is standing, the standard definition incorporates calculation. The relative intensities of two sounds stated in bels are what the logarithm of the intensity ratio equals as a result.
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most of the focusing is done at the front of the eye by a clear membrane that bends light inward. this membrane is called the question 39 options: a) cornea. b) pupil. c) iris. d) lens.
At the front of the eye, most of the focusing is performed by the cornea, a transparent membrane that bends light inward. The ideal selection is A. The cornea, which is transparent and forms the front of the eye.
Shields the iris and pupil. The anterior chamber, etc. Around two thirds of the optical power of the eye is refracted by the cornea, anterior chamber, and lens. Light, often known as visible light, is electromagnetic radiation that can be seen by humans. The wavelengths of visible light are commonly thought to range from 400 to 700 nanometers (nm), or from 750 to 420 terahertz. In physics, a force is an effect that has the ability to change how an object moves.
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he slope at a point on a position-versus-time graph of an object is the object's speed at that point:
the object's average velocity at that point:
the object's instantaneous velocity at that point:
the object's acceleration at that point:
the distance traveled by the object to that point.
Option a is Correct. An object's speed at a given moment is given by the slope at that point on a position-versus-time graph of the object: is the average speed of the object at that time:
The slope of location vs time is velocity. The velocity is constant if that slope does not change. The velocity is a negative constant if the slope is negative and stable.
The slope of velocity against time is acceleration. The slope of the line will be +4 m/s if the object is travelling at a velocity of +4 m/s. The slope of the line will be -8 m/s if the object is moving at a velocity of -8 m/s.
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Correct Question:
The slope at a point on a position-versus-time graph of an object is the object's speed at that point:
a. the object's average velocity at that point:
b. the object's instantaneous velocity at that point:
c. the object's acceleration at that point:
d. the distance traveled by the object to that point.
