Work done by the gravitational force on a bodyĀ of mass m moving on a smooth horizontalĀ surface through a distance s is: (Given acceleration due to gravity =g):
A
mgs
B
āmgs
C
0
D
2mgs
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Updated on : 2022-09-05
Solution
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Correct option is C)
Work is done only when the displacement is in the direction of force.
Work done is zero when force is perpendicular to displacement.
As the gravitational force is perpendicular to the distance moved by body, the work done by gravity will be zero.Ā
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