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JEE PHYSICS MCQ: GRAVITATION

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The escape velocity of a sphere of mass

m

from earth having mass

M

and radius

R

is given by

View answer and explanation

Correct option: A

\sqrt {\frac{{2GM}}{R}}

Option A (

\sqrt {\frac{{2GM}}{R}}

) is correct because the escape velocity is independent of the mass of the escaping object and depends on the mass and radius of the planet.

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11.2\mathrm{\;\;km}{\mathrm{s}^{ - 1}}

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

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with the vertical, the escape velocity will be The escape velocity of a body projected from the surface of earth is

v_e

. If the body is projected at an angle

\theta

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