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20 November, 07:06

A ball having a mass of 200 g is released from rest at a height of 400 mm above a very large fixed metal surface. If the ball rebounds to a height of 325 mm above the surface, determine the coefficient of restitution between the ball and the surface.

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  1. 20 November, 10:38
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    0.9

    Explanation:

    h = 400 mm, h' = 325 mm

    Let the coefficient of restitution be e.

    h' = e^2 x h

    325 = e^2 x 400

    e^2 = 0.8125

    e = 0.9
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