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Question

A 0.5 kg ball is thrown horizontally from point A with velocity VA=2m/s. It strikes the smooth inclined plane and bounces. Take coefficient of restitution e =0.6 and g=10m/s2

The speed at which it bounces from the plane is

A
20 m/s
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B
4 m/s
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C
8 m/s
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D
14 m/s
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