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JEE PHYSICS MCQ: GRAVITATION

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Application +4 | -1

The masses and radii of the earth and moon are

{M_{1,}}{R_1}

and

{M_{2,}}{R_2}

respectively, their centres are distance

d

apart. The minimum velocity with which a particle of mass

m

should be projected from a point midway between their centres so that it escapes to infinity is

View answer and explanation

Correct option: A

2\sqrt {\frac{G}{d}({M_1} + {M_2})}

Option A is correct because it calculates the escape velocity based on the gravitational potential at the midpoint between the Earth and Moon.

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