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A spaceship is launched into a circular ...

A spaceship is launched into a circular orbit close to earth's surface. The additional velocity that should be imparted to the spaceship in the orbit to overcome the gravitational pull is
(Radius of earth 6400 km and `g = 9.8 m s^(-2)`)

A

1.414 R g

B

1.414 `sqrt(gR)`

C

0.414 R g

D

0.414 `sqrt(gR)`

Text Solution

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The correct Answer is:
B
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