A body is launched from the earth’s surface, of radius R, so that it just...

NECO 2003

A body is launched from the earth’s surface, of radius R, so that it just escapes from the gravitational influence of the earth; If the gravitational constant is G and the mass of the earth is M, what is the escape velocity of the boby.

A. \(\sqrt{2GM}\) ÷ R
B. \(\frac{\sqrt{2GM}}{R}\)
C. \(\frac{\sqrt{2G}}{MR}\)
D. \(\sqrt{2GMR}\)
E. \(\frac{\sqrt{R}}{2GM}\)

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Correct Answer: Option B

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