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A body (initially at rest is falling und...

A body (initially at rest is falling under gravity. When it loses a gravitational potential energy by `U`, its speed is `v`. The mass of the body shall be `:`

A

`(2U)/(v^(2))`

B

`(2v)/(U^(2))`

C

`(2v)/(U)`

D

`(U^(2))/(2v)`

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The correct Answer is:
A
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