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Work done by the gravitational force on ...

Work done by the gravitational force on a body of mass `''m''` moving on a smooth horizontal surface through a distance `'s'` is

A

`mgs`

B

`-mgs`

C

`0`

D

`2 mgs`

Text Solution

Verified by Experts

The correct Answer is:
C
`W = vec(F).vec(S) = FS cos theta` and `theta = 90^(@)`
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Knowledge Check

  • A constant force of 20N is applied to pull a body of mass 10 k, kept on a smooth horizontal surface. What is the increase in its kinetic energy if the body starts from rest and covers a distance of 5m?

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