1. The problem statement, all variables and given/known data A .150kg baseball is dropped from rest. IF the magnitude of the baseball's momentum is .780 kg m/s just before it lands on the ground, from what height was it dropped? 2. Relevant equations P=mv 3. The attempt at a solution I found the final velocity and know that the inital position is zero and the initial velocity is zero obviously. i tried to go back to the kinematic equations to solve for final position but i do not know time and i do not know acceleration.