Question

A worker who weighs 600N carries a load of 100N through a distance of 5m. How much energy does he use ​

Answer 1

Here, the net force F=600+100=700N
As the energy is the form of work done, so the used energy = work done =Fd=700×5=3500J=35000×10
7
ergs=3.5×10
11
ergs