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force F on a particle moving in a straig...

force `F` on a particle moving in a straight line veries with distance `d` as shown in the figure. The work done on the particle during its displacement of `12 m` is

A

`18J`

B

`21 J`

C

`26 J`

D

`13 J`

Text Solution

Verified by Experts

The correct Answer is:
D
Refer to figure.
Work done `=` area under `F-d` graph
`=` area of rectangle `ABCD+` area of triangle `DCE`
`=2xx(7-3)+(1)/(2)xx2xx(12-7)=8+5=13J`
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