Cool, I can understand that. So as the ball falls back towards the earth, the Earth can be seen to be gaining momentum, but due its extreme mass, acclerates at an infinitesimal rate. I hope I got that right. Thanks very much.
I hav just begun a biomechanics unit in Year 9 Phys ed, and have received my assignment for the term. As part of the assignment we must consider the momentum of the ball and its forward trajectory. I didnt place this thread in homework, as there is no actual problem, just considerations. On...