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Question 5 1 pts You drop a ball with mass 0.03 kg, it starts with zero initial speed. When it has fallen vertically 4 meters
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Answer #1

Using energy conservation

Frictional work done = pE - kE

W = mgh - 0.5 m v^2

W = 0.03* ( 9.8* 4 - 0.5* 2.5^2)

W = - 1.08 J

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