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With what velocity should a particle be ...

With what velocity should a particle be projected so that its height becomes equal to radius of earth?

A

`((GM)/(R ))^(1//2)`

B

`((8GM)/(R ))^(1//2)`

C

`((2GM)/(R ))^(1//2)`

D

`((4GM)/(R ))^(1//2)`

Text Solution

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The correct Answer is:
A
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