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A space ship of 2xx10^4 kg is launched i...

A space ship of `2xx10^4` kg is launched into a circular orbit close to the earth surface.The additional velocity to be imparted to the space ship in the orbit to overcome the gravitational pull will be (if g=10 `m/s^2` and radius of earth=6400 km )

A

`8(sqrt2-1) km//s`

B

`7.4(sqrt2-1) km//s`

C

`7.9(sqrt2-1) km//s`

D

`11.2(sqrt2-1) km//s`

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