JEE PHYSICS MCQ: GRAVITATION

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A body of mass

m

is projected from earth surface with speed

{v = \,2\sqrt {gR} }

(where

R

is the radius of earth). Find its speed at very far (infinite) from earth’s surface:-

View answer and explanation

Correct option: A

\sqrt {2gR}

Option A (

\sqrt {2gR}

) is correct because it is derived from the conservation of energy principle, considering the initial kinetic and potential energy and the final kinetic energy at infinity.

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. If the body is projected in a direction making an angle of

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v_e

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