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The masses and radii of the earth and moon are  and  respectively. Their centres are distance  apart. The minimum velocity with which a particle of mass  shoule be projected from a point midway between their centres so that it escapes to infinity is

a)

b)

c)

d)



Question ID - 54740 | SaraNextGen Top Answer

The masses and radii of the earth and moon are  and  respectively. Their centres are distance  apart. The minimum velocity with which a particle of mass  shoule be projected from a point midway between their centres so that it escapes to infinity is

a)

b)

c)

d)

1 Answer
127 votes
Answer Key / Explanation : (a) -

(a)

Gravitational potential at mid point

Now,

 mass of particle)

So, for projecting particle from mid point to infinity

127 votes


127