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Q.

Escape velocity of a body from earth is about 11 km/sec. 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/sec from the surface of the moon will be :

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a

0.54

b

2.44

c

11

d

49.5

answer is B.

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Escape velocity of a body from earth is about 11 km/sec. 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/sec from the surface of the moon will be :