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A body of mass 5 kg is placed at the ori...

A body of mass 5 kg is placed at the origin, and can move only on the x-axis. A force of 10 N is acting on it in a direction making an angle of o `60^(@)` with the x-axis and isplaces it along the x-axis by 4 metres . The work done by the force is

A

2.5 J

B

7.5 J

C

40 J

D

20 J

Text Solution

Verified by Experts

The correct Answer is:
D
`W=FS cos theta = 10xx4xx cos 60^(@)=20` Joule.
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