Which falls faster, big rain drops or small rain drops ?
Which falls faster, big rain drops or small rain drops ?
Terminal velocity of rain drop,
$v_{t}=\frac{2}{9} r^{2} g\left(\frac{\rho-\sigma}{\eta}\right)$
$\therefore$ According to $v_{t} \propto r^{2}$, large drop have more terminal velocity so, it falls quickly.
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