A waterskier is being pulled by a tow rope attached to a boa

A water-skier is being pulled by a tow rope attached to a boat. As the driver pushes the throttle forward, the shier accelerates. A 76 5-kg water-skier has an Initial speed of 5.6 m/s. Later, the speed increases to 10.9 m/s. Determine the work done by the net external force acting on the skier. W =

Workdone is equal to change in kinetic energy,

W = 1/2*m*(vf^2 - vi^2)