Escape velocity on the surface of earth ...

Escape velocity on the surface of earth is 11.2 km/s . Escape velocity from a planet whose mass is the same as that of earth and radius 1/4 that of earth is

2.8 km`//`s

15.6 km`//`s

22.4 km`//`s

44.8 km`//`s

Text Solution

Verified by Experts

The correct Answer is:

`v_e.=sqrt((2GM)/(R//4))=2v_e=22.4` km/sec

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