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Question

Figure shows the force versus displacement graph of the particle. Find out the work done by the force to displace the particle from x=0 to x=20 m.


A
100 Nm
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B
200 Nm
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C
150 Nm
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D
250 Nm
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Solution

The correct option is B 200 Nm
Work done, W=F.dx
Work done by the force equals to the area under Fx curve.0


Work done by the force to displace the particle from x=0 m to x=20 m
Area I + Area II + Area III
W=(12(5+15)×5)+(5×15)+(12×10×15)
W=50+75+75=200 Nm

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