A person pushes a box. He applies force of 400 newtons, and he pushes the box for a distance of 4 meters. After he stops pushing, the box slides forward another meter. How much work was done by person?

Answer 1

The work done by the person is equal to the force applied multiplied by the distance moved in the direction of the force.

Work = Force × Distance

The force applied by the person is 400 newtons, and the distance moved in the direction of the force is 4 meters + 1 meter = 5 meters.

Therefore,

Work = 400 newtons × 5 meters = 2000 joules.

So, the person did 2000 joules of work.