In the figure, a constant external force P = 160 N is applied to a 20.0-kg box, which is on a rough horizontal surface. While the force pushes the box a distance of 8.00 m, the speed changes from 0.500 m/s to 2.60 m/s. Find the work done by friction during this process.

In the figure a constant external force P 160 N is applied to a 200kg box which is on a rough horizontal surface While the force pushes the box a distance of 80 class=