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A body is released from a height equal to the radius \((R)\) of the earth. The velocity of the body when it strikes the …

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A body is released from a height equal to the radius \((R)\) of the earth. The velocity of the body when it strikes the surface of the earth will be :
(Given \(g=\) acceleration due to gravity on the earth.)

[JEE Main 2021, 26 Feb (Shift 1)]

a

\(\sqrt{g R}\)

b

\(\sqrt{4 g R}\)

c

\(\sqrt{2 g R}\)

d

\(\sqrt{\frac{g R}{2}}\)

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