posted by Lindsey
A football punter accelerates a football from rest to a speed of 9.1 m/s
during the time in which his toe is in contact with the ball (about 0.247 s). If the football
has a mass of 484 g, what average force does the punter exert on the ball?
impulse momentum = Ft=M*Velocity. (0.484Kg)(9.1m/s)/0.247s should give you the Force (F).