A particle of mass $m$ strikes the ground inelastically, with coefficient of restitution $e$
A particle of mass $m$ strikes the ground inelastically, with coefficient of restitution $e$
- A
$\frac{{\tan \,\alpha }}{{\tan \,\theta }} = e$
- B
$\frac{{\tan \,\theta }}{{\tan \,\alpha }} = e$
- C
${\tan ^2}\,\theta + {\tan ^2}\,\alpha = 1$
- D
${\tan ^2}\,\theta + {\tan ^2}\,\alpha = {e^2}$
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(Note, we are talking here of potential energy corresponding to the force during collision, not gravitational potential energy).
Answer carefully, with reasons :
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$(b)$ Is the total linear momentum conserved during the short time of an elastic collision of two balls ?
$(c)$ What are the answers to $(a)$ and $(b)$ for an inelastic collision ?
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(Note, we are talking here of potential energy corresponding to the force during collision, not gravitational potential energy).
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