A child is stationary on a swing. The child is given a push by his brother to start him swinging. His brother applies a steady force of 84 N over a distance of 0.25 m. Calculate the work done by this force.
The formula is M=Fd so we have F=84N and d=0.25m Now we just replace F and d into the formula M=84N×0.25m And the last thing we do is calculate it M=21Nm
