Question

Force - displacement curve for a body in one dimensional motion is as shown in the figure.

Work done by the force in displacing the body from displacment zero to $6\text{m}$ is given by

• A. zero
• B. $10\text{J}$
• C. $20\text{J}$
• D. $60\text{J}$

Answer 1

The correct option is A zero

Work done is area under force displacement graph.
Area under the given graph as body displaces from zero to $6\text{m}$ is $=20\times 1-10\times 1-20\times 1+0\times 1+10\times 1+0\times 1=0$.
Hence, the correct answer is option (a).