You are standing on a sheet of ice that covers the football stadium parking lot in Buffalo; there is negligible friction between your feet and the ice. A friend throws you a ball of mass 0.400kg that is traveling horizontally at 10.5 m/s . Your mass is 65.0 kg .
If you catch the ball, with what speed do you and the ball move afterwards?
I set the momentum before equal to the momentum after, then solved for final velocity.
v2= (MaVa1+ MbVb1)/(Ma+Mb) and since the body isn't moving at all than the MbVb1 just is zero. you also want the 10.5 m/s into cm which is 1050 cm/s
I keep getting 16.1 and the answer is 6.42...