A football player kicks a 0.41-kg football initially at rest;and the ball flies through the air. If the kicker's foot was incontact with the ball for 0.051 s and ball's initial speed afterthe collision is .21 m/s, what was the magnitude of the averageforce on the football?
1) what is the football's change in momentum?
2) what was the magnitude of the average force on the football?