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

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

A

18 J

B

21 J

C

26 J

D

13 J

Text Solution

Verified by Experts

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