A 6 kg steel ball strikes a wall with a speed of 11.2 m/s at an angle of 50.5 degrees with the normal to the wall. It bounces off with the same speed and angle. If the ball is in contact with the wall for .219s, what is the magnitude of the avg force exerted on the ball by the wall. Answer in units of N.
change in momentum (delta p)= avg force * change in time
In this case, because there is no change in momentum, wouldnt that mean the avg force would be zero?