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If a raindrop with a mass of 0.05 g fall...

If a raindrop with a mass of 0.05 g falls with constant velocity, the retarding force of atmospheric friction is (neglect density of air) …………… .

A

zero

B

49 dynes

C

490 dynes

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
B
Since the rain drop is falling with constant velocity , the retarding upwards force is equal to its weight in magnitude, `F = 0.05 xx 980 = 49` dynes
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