to plate Just as the ball makes contact with the plate, it has velocity v, momentum p and kinetic energy Ex Just before the impact with the plate, the ball of mass 35g has a speed of 4.5 ms. It bounces from the plate so that its speed immediately after losing contact with the plate is 3.5 ms1. The ball is in contact with the plate for 0.14s. For the time that the ball is in contact with the plate, calculate the average force, in addition to the weight of the ball, that the plate exerts on the ball. State both size and direction.

Glencoe Physics: Principles and Problems, Student Edition
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Author:Paul W. Zitzewitz
Publisher:Paul W. Zitzewitz
Chapter9: Momentum And Its Conservation
Section: Chapter Questions
Problem 77A
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plate
Just as the ball makes contact with the plate, it has velocity v, momentum p and kinetic energy EK.
Just before the impact with the plate, the ball of mass 35g has a speed of 4.5 ms1. It bounces from the plate so that its
speed immediately after losing contact with the plate is 3.5 ms1. The ball is in contact with the plate for 0.14s.
For the time that the ball is in contact with the plate, calculate the average force, in addition to the weight of the ball, that
the plate exerts on the ball. State both size and direction.
Transcribed Image Text:plate Just as the ball makes contact with the plate, it has velocity v, momentum p and kinetic energy EK. Just before the impact with the plate, the ball of mass 35g has a speed of 4.5 ms1. It bounces from the plate so that its speed immediately after losing contact with the plate is 3.5 ms1. The ball is in contact with the plate for 0.14s. For the time that the ball is in contact with the plate, calculate the average force, in addition to the weight of the ball, that the plate exerts on the ball. State both size and direction.
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