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The escape velocity of a body from earth...

The escape velocity of a body from earth is about 11.2 km/s. Assuming the mass and radius of the earth to be about 81 and 4 times the mass and radius of the moon, the escape velocity in km/s from the surface of the moon will be:

A

`0.54`

B

`2.48`

C

11

D

`49.5`

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The correct Answer is:
B
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