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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 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 the through

C

at the instant just after the body is projected

D

at the highest position of the body

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The correct Answer is:
A
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CHHAYA PUBLICATION-NEWTONIAN GRAVITATION AND PLANETARY MOTION-EXERCISE (Multiple choice Questions)
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  17. If the daily rotation of the earth ceases suddenly, then the weight of...

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  19. The radius of a uniform sphere is R and its mass is M. The values of t...

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