Question

A force of 15 Newton acts on an object and displaces it by 2 m. If the force acts at an angle of 60° to the direction of its displacement, find the work done. ( cos 60° = ½)​

Answer 1

Answer:

The Work done is 15 J

Explanation:

Force , F = 15N

Displacement, S = 2m

The angle between the force and displacement , $\theta =60$

Work done is defined as the product of the magnitude of displacement and the component of force that is in the direction of displacement.

Work done, W = F.S = FS$cos\theta$ = $\begin{aligned}15\times 2\times \cos 60\end{aligned}$ = $15\times 2\times \frac{1}{2}$ = 15 J