Post a New Question


posted by .

A 62.7-kg person jumps from rest off a 2.98-m-high tower straight down into the water. Neglect air resistance. She comes to rest 1.09 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.

please help :D? i really don't get this question

  • physics -

    Calculate speed when body hits water:
    (1/2) m v^2 = m g h
    v = sqrt(2 g h)

    average force = change in momentum /time to stop

    change in momentum = m(v-0)

    time to stop = distance/average speed = 1.09 / (.5 v)

Answer This Question

First Name:
School Subject:

Related Questions

More Related Questions

Post a New Question