Problem 4: A 0.05kg bouncy ball is dropped from height 9m and loses 20% of its...

  

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Problem 4: A 0.05kg bouncy ball is dropped from height 9m and loses 20% of its energy upon impact each time it bounces. Assume that there is no 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 first bounce? c) What is the kinetic energy of the ball after the second bounce? d) How high does the ball bounces after the second impact? e) How many bounces does it take before the ball bounces to a height approximately half of its initial height? f) Fill in the energy bar diagram for (the system consists of the ball and the Earth); Right before the first impact Ece K U E E Right before the second impact K P En Maximum height after the first impact E KU E Maximum height after the second impact E K U Edus Problem 4: A 0.05kg bouncy ball is dropped from height 9m and loses 20% of its energy upon impact each time it bounces. Assume that there is no 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 first bounce? c) What is the kinetic energy of the ball after the second bounce? d) How high does the ball bounces after the second impact? e) How many bounces does it take before the ball bounces to a height approximately half of its initial height? f) Fill in the energy bar diagram for (the system consists of the ball and the Earth); Right before the first impact Ece K U E E Right before the second impact K P En Maximum height after the first impact E KU E Maximum height after the second impact E K U Edus

Answer rating: 100% (QA)

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