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A 0.250 kg toy car moving with a speed of 0.820 m/s collides with a wall. The figure shows the force exerted on the car by the wall over the course of the collision. What is the magnitude of the velocity, or final speed, of the car after the collision? .540 final speed = m/s Incorrect 5 0.1 0.2 Time (s) Force (N)

A 0.250 kg toy car moving with a speed of 0.820 m/s collides with a wall. The figure shows the force exerted on the car by the wall over the course of the collision. What is the magnitude of the velocity, or final speed, of the car after the collision? .540 final speed = m/s Incorrect 5 0.1 0.2 Time (s) Force (N)

Physics for Scientists and Engineers: Foundations and Connections
Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter11: Collisions
Section: Chapter Questions
Problem 40PQ: Initially, ball 1 rests on an incline of height h, and ball 2 rests on an incline of height h/2 as...
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A 0.250 kg toy car moving with a speed of 0.820 m/s collides with a wall. The figure shows the force exerted on the car by the wall over the course of the collision.

What is the magnitude of the velocity, or final speed, of the car after the collision?

A 0.250 kg toy car moving with a speed of 0.820 m/s collides with a wall. The figure shows the force exerted on the car by the wall over the course of the collision. What is the magnitude of the velocity, or final speed, of the car after the collision? .540 final speed = m/s Incorrect 0.1 0.2 Time (s) Force (N)
Transcribed Image Text:A 0.250 kg toy car moving with a speed of 0.820 m/s collides with a wall. The figure shows the force exerted on the car by the wall over the course of the collision. What is the magnitude of the velocity, or final speed, of the car after the collision? .540 final speed = m/s Incorrect 0.1 0.2 Time (s) Force (N)
When the car collides with the wall, the wall exerts a backwards force on the car. The effect of this force is to change the momentum of the car. You are given a graph which shows the magnitude of the force exerted by the wall on the car, so you can determine the magnitude of the change in the car's momentum. The change in the car's momentum over the course of the impact is equal to the impulse imparted to the car by the wall. The impulse can be found by measuring the area under the force-time curve for the interaction between the car and wall. In this case, the area can be determined by examining the graph, but pay careful attention to the scales of the axes.
Transcribed Image Text:When the car collides with the wall, the wall exerts a backwards force on the car. The effect of this force is to change the momentum of the car. You are given a graph which shows the magnitude of the force exerted by the wall on the car, so you can determine the magnitude of the change in the car's momentum. The change in the car's momentum over the course of the impact is equal to the impulse imparted to the car by the wall. The impulse can be found by measuring the area under the force-time curve for the interaction between the car and wall. In this case, the area can be determined by examining the graph, but pay careful attention to the scales of the axes.
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