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A body projected vertically from the ear...

A body projected vertically from the earth reaches a height equal to earth's radius before returning to the earth. The power exerted by the gravitational force is greatest.

A

at the instant just before the body hits the earth

B

it remains constant all through

C

at the instant just after the body is projected

D

at the highest position of the body

Text Solution

Verified by Experts

The correct Answer is:
A
We know `P =vecF.vecv=Fv cos theta`
So just before hitting `theta` is zero and both `F` and `v` are maximum.
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