A 68 kg soccer player jumps vertically upwards and heads the 0.45 kg ball as it is descending vertically with a speed of 30 m/s. If the player was moving upward with a speed of 4.0 m/s just before impact, what will be the speed of the ball immediately after the collision if the ball rebounds vertically upwards and the collision is elastic? m/s If the ball is in contact with the player's head for 20 ms, what is the average acceleration of the ball? (Note that the force of gravity may be ignored during the brief collision time.) m/s2

A 68 kg soccer player jumps vertically upwards and heads the 0.45 kg ball as it is descending vertically with a speed of 30 m/s. If the player was moving upward with a speed of 4.0 m/s just before impact, what will be the speed of the ball immediately after the collision if the ball rebounds vertically upwards and the collision is elastic? m/s If the ball is in contact with the player's head for 20 ms, what is the average acceleration of the ball? (Note that the force of gravity may be ignored during the brief collision time.) m/s2

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter6: Momentum And Collisions

Section: Chapter Questions

Problem 4WUE: A soccer player runs up behind a 0.450-kg soccer ball traveling at 3.20 m/s and kicks it in the same...

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