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A 0.05kg bouncy ball is dropped from height 9m and loses 20% of its energy upon...

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Physics

A 0.05kg bouncy ball is dropped from height 9m and loses 20% ofits energy upon impact each time it bounces. Assume that there isno air resistance.

a) What is the kinetic energy of the ball before the impact?

b) What is the kinetic energy of the ball after the firstbounce?

c) What is the kinetic energy of the ball after the secondbounce?

d) How high does the ball bounces after the second impact?

e) How many bounces does it take before the ball bounces to aheight approximately half of its initial height?

f) Fill in the energy bar diagram for (the system consists ofthe ball and the Earth):

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