- #1

robertmatthew

- 48

- 0

## Homework Statement

A 473-gram baseball traveling at 37 m/s is hit directly back at the pitcher with a speed of 45 m/s. If the force of contact between the bat and the ball is 3800 Newtons, how long is the bat in contact with the ball?

## Homework Equations

F= dp/dt

## The Attempt at a Solution

F=dp/dt

t=dp/F

t=(m)(v

_{2}-v

^{1})/F

t=(.473)(8)/(3800) ---> converted 473g into kg because Newtons are kg*m/s

^{2}

t=.000996 s

But that's not the right answer. I've also tried not converted g->kg and that doesn't work either, so obviously there's something else I'm doing wrong, but I just don't know what it is.