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A raindrop of radius r falls from a cert...

A raindrop of radius r falls from a certain height h above the ground. The work done by the gravitational force is proportional to :

A

`r^4`

B

`r^3`

C

`r^2`

D

r

Text Solution

Verified by Experts

The correct Answer is:
b
Work done, `W=mgh=4/3pi r^3 pgh`
`[because mass=volumexxdensity]`
`:. W prop r^3`
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