A particle of mass $m$ moving with a speed $v$ hits elastically another stationary particle of mass $2\ m$ in a fixed smooth horizontal circular tube of radius $R$. Find the time when the next collision will take place?
A particle of mass $m$ moving with a speed $v$ hits elastically another stationary particle of mass $2\ m$ in a fixed smooth horizontal circular tube of radius $R$. Find the time when the next collision will take place?
- A
$\frac{{\pi R}}{v}$
- B
$\frac{{2\pi R}}{v}$
- C
$\frac{{4\pi R}}{v}$
- D
$\frac{{6\pi R}}{v}$
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