A 0.55-{kg} croquet ball is initially at rest on the grass. When the ball is struck by a mallet, the average force exerted on it is 220 N. If the ball's speed after being struck is 3.2 m/s, how long was the mallet in contact with the ball?

1 answer

force * time = change in momentum

time = m v/220 = .55*3.2 / 220