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To required kinetic energy of an object ...

To required kinetic energy of an object of mass `m`, so that it may escape, will be

A

`(1)/(4)mgR`

B

`(1)/(2)mgR`

C

`mgR`

D

`2mgR`

Text Solution

Verified by Experts

The correct Answer is:
C
`KE=(1)/(2)mv_(e)^(2)=(1)/(2)m(2gR)=mgR`
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