A particle is dropped on Earth from height $R$ (radius of Earth) and it bounces back to a height $R/2$ the coefficient of restitution for collision is (ignore air resistance and rotation of Earth)
A particle is dropped on Earth from height $R$ (radius of Earth) and it bounces back to a height $R/2$ the coefficient of restitution for collision is (ignore air resistance and rotation of Earth)
- A
$\frac{2}{3}$
- B
$\sqrt {\frac{2}{3}} $
- C
$\sqrt {\frac{1}{3}} $
- D
$\sqrt {\frac{1}{2}} $
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