Problem 7 on Force and Motion June 1, 2020 A 4 kg ball traveling with a speed of 2 m/s strikes a rigid wall and rebounds elastically. If the ball is in contact with the wall for 0.05 s, what is ... 1 Comment Problem 7: A 4 kg traveling with a speed of 2 m/s strike a rigid wall and rebounds elastically. If the ball is in contact…