Question

The escape velocity from the earth for a rocket is 11.2 km/sec. Ignoring the air resistance, the escape velocity of 10 mg grain of sand from the earth will be

A

0.112 km/sec

B

11.2 km/sec

C

1.12 km/sec

D

None

Easy
Updated on : 2022-09-05
Solution
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Correct option is B)

Escape velocity on a planet depends on the mass and radius of the planet alone. Hence, both for the rocket and the sand grain, escape velocity is 11.2 km/sec.

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