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A ball is thrown onto a smooth floor wit...

A ball is thrown onto a smooth floor with speed `u` at angle `theta = 45^(@)`. If it rebounds with a speed `v` at the same angle `phi = 45^(@)`. Then the coefficient of restitution is

A

`0.5`

B

`0.6`

C

`0.1`

D

`1`

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The correct Answer is:
D
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