Physics

Problem

A satellite is moving with a constant speed

v

in a circular orbit about the earth. An object of mass

m

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)

\frac{1}{2}mv^2

(B)

mv^2

(C)

\frac{3}{2}mv^2

(D)

2mv^2

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