First slide

Work

Question

Figure shows the F-x graph. Where F is the force applied and x is the distance covered by the body along a straight line path. Given that F is in newton and x in metre, what is the work done ?

Moderate

A

10 J
B

20 J
C

30 J
D

40 J

Solution

Work done = area under curve and displacement axis
= $1 \times 10 - 1 \times 10 + 1 \times 10 = 10 J$

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