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Escape velocity of a body 1 kg mass on a...

Escape velocity of a body `1 kg` mass on a planet is `100 ms^(-1)`. Gravitational potential energy of the body at that planet is

A

`-500 J`

B

`-1000J`

C

`-2400 J`

D

`5000 J`

Text Solution

Verified by Experts

The correct Answer is:
A
`v_(e)=sqrt((2GM)/R)=100rArr (GM)/R=5000`
`:. PE(U)=-(GMm)/R=-5000 J`
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