Question

Q1: A force of 7 N acts on an object. The displacement is, say 8 m, in the direction of the force. Let us take it that the force acts on the object through the displacement. What is the work done in this case?​

Answer 1

Given,force=7N;displacement=8m

Given,force=7N;displacement=8mWorkdone=Force×Displacement

Given,force=7N;displacement=8mWorkdone=Force×Displacement =7×8=56J

Answer 2

Given:-

Force = 7N

Displacement = 8m

To find :-

Work done

Solution :-

When a force F acts on an object to displace it through a distance S in its direction, then the

work done on the body by the force is given by:

Work done = Force × Displacement

W = F × S

Where, F = 7 N, S = 8 m

Therefore, work done, W = 7 × 8

= 56 Nm

= 56 J

So work done = 56 J