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3 Conservation of energy

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Question 103
H

A ball is released from rest at a height of 2.0 m above a floor. After bouncing, it rises to 1.28 m. Air resistance is negligible. What is the ratio of its speed immediately after impact to its speed immediately before impact?

[1]
A

0.64:10.64:10.64:1

B

0.80:10.80:10.80:1

C

1.25:11.25:11.25:1

D

1.56:11.56:11.56:1

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3 Conservation of energy Questions

  1. GCSE
  2. /Physics
  3. /3 Conservation of energy

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