- #1

AsuraSky

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## Homework Statement

A high diver of mass 50.0 kg jumps off a board 10.0 m above the water. If her downward motion is stopped 2.30 s after she enters the water, what average force did the water exert on her?

## Homework Equations

F

_{net}=ma

v

_{f}

^{2}=v

_{0}

^{2}+2ax

## The Attempt at a Solution

First I found the final velocity of the diver when she hits the water

v

_{f}

^{2}=0

^{2}+2(9.8)(10)=196

v

_{f}=14 m/s

Since she is slowed to a stop in 2.3s the average acceleration would be

14/2.3 = 6.08696

Knowing acceleration and her mass, we can calculate the force.

F=50(6.08696)=304.348

This answer was marked wrong. I'm pretty sure I did everything right. Am I missing something?