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JEE PHYSICS MCQ: GRAVITATION

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Application +4 | -1

The moon’s radius is

\frac{1}{4}

that of the earth and its mass is

\frac{1}{{80}}

times that of the earth. If

g

represents the acceleration due to gravity on the surface of the earth, that on the surface of the moon is

View answer and explanation

Correct option: B

\frac{g}{5}

Option B (

\frac{g}{5}

) is correct because it is derived from the formula for acceleration due to gravity, considering the moon's mass and radius relative to Earth's.

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The escape velocity for a body projected vertically upwards from the surface of the earth is

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

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

{45^0}

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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