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The escape velocity for a rocket from ea...

The escape velocity for a rocket from earth is 11.2 km / sec . Its value on a planet where acceleration due to gravity is double that on the earth and diameter of the planet is twice that of earth will be in km / sec

A

11.2

B

5.6

C

22.4

D

53.6

Text Solution

Verified by Experts

The correct Answer is:
C
`v_e=sqrt(2gR)`
`v_p=sqrt(2xx2gxx2R)=2v_e=22.4km//s`
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