Quote: Wellsy13 "If the player's momentum changes BEFORE the release or AT the release, does it have an affect on the ball?
If a 10 stone player and a 20 stone player are running at the same time in the same direction at a speed of 5m/s and pass the ball at the same speed and angle, which ball would travel the furthest forward? They obviously have different momentums.'"
Now we're getting into the difficult stuff, and TBH a full discussion of conservation of momentum in open and closed systems is probably way too far OT for this board. Basically the answer is 'yes' but in practical terms the difference would be too small to be observable.