GravitationHard

Question

A body attains a height equal to the radius of the Earth when projected from Earth′ surface. The velocity of the body with which it was projected is : -

Options

A.
B.
C.
D.

Solution

By applying conservation of energy
KEi + PEi = KEf + PEf
mv2 -
mv2 =
mv2 = ⇒ u =

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