Question

A box is pulled with a force of 25N to produce a displacement of 15m. if the angle between the force and displacement is 30°. Find the work done by the force?

Answer 1

work done =Force× displacement
= 25×15
=375 joule

Answer 2

Given - Force, displacement and angle

Find - Work done

Solution - Work done by force can be calculated by the formula- Force*displacement*cos theta.

Keep the values in formula to find the work done.

Work done = $25 \times 15 \times \cos(30)$

Keep the value of cos(30)

Work done = $25 \times 15 \times 0.87$

Performing multiplication

Work done = 326.25 Joules

Hence, the work done by force is 326.25 Joules.