A person pushes a box. He applies a 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 the person? (1 point)
Work done = force x distance
Work done = 400 N x 4 m = 1600 joules
Therefore, the person did 1600 joules of work.