A raindrop with radius $1.5\ mm$ falls from a cloud at a height $1200\ m$ from ground. The density of water is $1000\ kg/m^{3}$ and density of air is $1.2kg/m^{3}$. Assume the drop was spherical throughout the fall and there is no air drag. The impact speed of the drop will be

Question

Dr. Abubacker · Accepted Answer

(b) Impact speed
$= \sqrt{2gh} = \sqrt{2 	imes 9.8 	imes 1200} = 153.3 	imes \frac{18}{5} \approx 550\ km/h$

Q. A raindrop with radius $1.5\ mm$ falls from a cloud at a height $1200\ m$ from ground. The density of water is $1000\ kg/m^{3}$ and density of air is $1.2kg/m^{3}$. Assume the drop was spherical throughout the fall and there is no air drag. The impact speed of the drop will be

Explanation

Reviewed by Dr. Abubacker

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