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The gravitational potential energy of a ...

The gravitational potential energy of a body of mass ‘ m ’ at the earth’s surface `-mgR_(e)`. Its gravitational potential energy at a height `R_(e)` from the earth’s surface will be (Here `R_(e)` is the radius of the earth)

A

`-2mgR_e`

B

`2mgR_e`

C

`1/2mgR_e`

D

`-1/2mgR_e`

Text Solution

Verified by Experts

The correct Answer is:
D
`U_i=-mgR_e`
`U_f=(-mgh)/(1+h/(R_e))=(-mgR_e)/2`
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