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A body projected vertically from the earth reaches a height eq
Question

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

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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.
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Question Text
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.