9 kg person jumps from rest off a 2.86 m-high tower straight down into the water. Neglect air resistance during the descent. She comes to rest 1.13 m...

A 61.9 kg person jumps from rest off a 2.86 m-high tower straight down into the water. Neglect air resistance during the descent. She comes to rest 1.13 m under the surface of the water. Determine the magnitude of the average force that the water exerts on the diver. This force is nonconservative.