A 1.0 k g ball drops vertically into a floor from a height of 25 c m . It rebounds to a height of 4 c m . The coefficient of restitution for the collision is

Question

A 1.0 k g ball drops vertically into a floor from a height of 25 c m . It rebounds to a height of 4 c m . The coefficient of restitution for the collision is, 0.16, 0.32, 0.40, 0.56

MARKS App · Accepted Answer

Initial velocity before colliding floor u = 2 g h u = 5 final velocity after colliding floor v = 2 g h ′ v= 0.8 We know that coefficient of restitution e = v u e = 0 . 8 5 = 0.4

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