A 55-kg soccer player jumps vertically upwards and heads the 0.45-kg ball as it is descending vertically with a speed of 20 m/s. (Note that the force of gravity may be ignored during the brief collision time.) (a) 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 elasac? 32.569 Your response differs from the correct answer by more than 10%. Double check your calculations, m/s (b) If the ball is in contact with the player's head for 21 ms, what is the average acceleration of the ball? 2628.45 Your response differs from the correct answer by more than 10%. Double check your calculations. m/s? Need Help? Read It
A 55-kg soccer player jumps vertically upwards and heads the 0.45-kg ball as it is descending vertically with a speed of 20 m/s. (Note that the force of gravity may be ignored during the brief collision time.) (a) 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 elasac? 32.569 Your response differs from the correct answer by more than 10%. Double check your calculations, m/s (b) If the ball is in contact with the player's head for 21 ms, what is the average acceleration of the ball? 2628.45 Your response differs from the correct answer by more than 10%. Double check your calculations. m/s? Need Help? Read It
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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