A tennis ball of mass 0.06 kg is served against a wall with an initial velocity of 73 m/s. The ball hits the wall, stops momentarily, then bounces back in the opposite direction with the same speed. (a) What is the impulse? (b) The ball is in contact with the wall for 0.06 s. What is the average force on the ball during the collision? (c) What is the average force exerted on the wall during the impact?
A tennis ball of mass 0.06 kg is served against a wall with an initial velocity of 73 m/s. The ball hits the wall, stops momentarily, then bounces back in the opposite direction with the same speed. (a) What is the impulse? (b) The ball is in contact with the wall for 0.06 s. What is the average force on the ball during the collision? (c) What is the average force exerted on the wall during the impact?
Classical Dynamics of Particles and Systems
5th Edition
ISBN:9780534408961
Author:Stephen T. Thornton, Jerry B. Marion
Publisher:Stephen T. Thornton, Jerry B. Marion
Chapter9: Dynamics Of A System Of Particles
Section: Chapter Questions
Problem 9.30P
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Question
A tennis ball of mass 0.06 kg is served against a wall with an initial velocity of 73 m/s. The ball hits the wall, stops momentarily, then bounces back in the opposite direction with the same speed.
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(a) What is the impulse?
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(b) The ball is in contact with the wall for 0.06 s. What is the average force on the ball during the collision?
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(c) What is the average force exerted on the wall during the impact?
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(d) Is kinetic energy conserved?
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