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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)`

B

`(U)/(2v)`

C

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

D

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

Text Solution

Verified by Experts

The correct Answer is:
C
By COME loss is `PE=`gain in `KE` `:`
`U=(1)/(2)mv^(2)rArrm=(2U)/(v^(2))`
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