PhysicsNEET 2021Gravitational potential and potential energy

Gravitation

A particle of mass $m$ is projected with a velocity $v = k V_{e}$ ( $k < 1$ ) from the surface of the earth ( $V_{e}$ = escape velocity). The maximum height above the surface reached by the particle is:

A. $R (\frac{k}{1 - k})^{2}$
B. $R (\frac{k}{1 + k})^{2}$
C. $\frac{R ^{2} k}{1 + k}$
D. $\frac{R k ^{2}}{1 - k ^{2}}$ ✓

You have the answer. The worked solution — and why the other three were written — is part of a paid pack.

Gravitation

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