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A spaceship is launched in to a circular...

A spaceship is launched in to a circular orbit of radius `R` close to surface of earth. The additional velocity to be imparted to the spaceship in the orbit to overcome the earth's gravitational pull is (`g`=acceleration due to gravity)

A

`1.414Rg`

B

`1.414sqrt(Rg)`

C

`0.414Rg`

D

`0.414sqrt(gR)`

Text Solution

Verified by Experts

The correct Answer is:
D
`V=V_(e)-V_(0)=sqrt(2gR)-sqrt(gR)=sqrt(gR)(sqrt(2)-1)`
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