A body of mass m falls down through a height h. Find the work done by gravity.

mgh

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2mgh

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4mgh

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Solution

The correct option is A
mgh

Given,
Mass of the body = $m$
Displacement = $h$
Acceleration due to gravity = $g$
Gravitational force = $m g$
As per the definition of work done,
W = Force $\times$ Displacement
Work done = mgh

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If a body of mass $m$ falls through a height $h$ . Establish an equation for the work done by the gravity.

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