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Questions  

A small body is projected from the earth’s surface vertically up with the escape velocity on the earth.Out of the following curves the one that represents the variation of KE with altitude h is

a
b
c
d

detailed solution

Correct option is D

Since the body is projected  with escape velocity , its total energy is zero.Now KE + PE = T.E.So , option - (4) is right.

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