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A satellite is moving with a constant speed  in a circular orbit about the earth. An object of mass  is ejected from the satellite such that it just escapes from the gravitational pull of the earth. At the time of its ejection, the kinetic energy of the object is

a)

b)

c)

d)



Question ID - 54492 | SaraNextGen Top Answer

A satellite is moving with a constant speed  in a circular orbit about the earth. An object of mass  is ejected from the satellite such that it just escapes from the gravitational pull of the earth. At the time of its ejection, the kinetic energy of the object is

a)

b)

c)

d)

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

(b)

In circular orbit of a satellite of potential energy

Just to escape from the gravitational pull, its total mechanical energy should be zero. Therefore , its kinetic energy should be

127 votes


127