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A stone is dropped from a height equal t...

A stone is dropped from a height equal to `nR`, where `R` is the radius of the earth, from the surface of the earth. The velocity of the stone on reaching the surface of the earth is

A

`sqrt((2g(n+1)R)/n)`

B

`sqrt((2gR)/(n+1))`

C

`sqrt((2gnR)/(n+1))`

D

`sqrt(2gnR)`

Text Solution

Verified by Experts

The correct Answer is:
C
`1/2mv^(2)=(mgh)/(1+h/R)`
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