1. The problem statement, all variables and given/known data 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? 2. Relevant equations F= dp/dt 3. The attempt at a solution F=dp/dt t=dp/F t=(m)(v2-v1)/F t=(.473)(8)/(3800) ---> converted 473g into kg because newtons are kg*m/s2 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.