Estimate the speed of vertically falling raindrops from

Question:

Estimate the speed of vertically falling raindrops from the following data. Radius of the drops $=0.02 \mathrm{~cm}$, viscosity of air $=$ $1.8 \times 10^{-4}$ poise, $g=9.9 \mathrm{~m} / \mathrm{s}^{2}$ and density of water $=1000 \mathrm{~kg} / \mathrm{m}^{3}$.

Solution:

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