1 Gravitation
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
1) $$\frac{1}{2} m v^2$$ 2) $$ m v^2$$ 3) $$\frac{3}{2} m v^2$$ 4) $$ 2m v^2$$
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