A squash ball of mass 0. 035 kg hits the wall at speed of 78 m/s and rebounds straight back at 61 m/s. The ball is in contact with the wall for 0. 44 s
a) What is the original momentum of the squash ball?
b) Calculate the impulse imparted to the ball by the wall.
c) What force acted on the squash ball from its impact?
