Question

A particle moving in the xy plane undergoes a displacement of $\overrightarrow{s}=(2\hat{i}+3\hat{j})$ while a constant force $\overrightarrow{F}=(5\hat{i}+2\hat{j})N$ acts on the particle. The work done by the force $F$ is

• A. l7 joule
• B. l8 joule
• C. 16 joule
• D. 15 joule

Answer 1

The correct option is C 16 joule

$W=\overline{F}.\overline{s}=(5\hat{i}+2\hat{j}).(2\hat{i}+3\hat{j})=10+6=16J$.