A m = 3 kg steel ball strikes a wall with a speed of v = 10 m/s at an angle of ?i = 60? with the surface. It bounces off with the same speed and at an angle of ?f = 60?.
(a) Determine the impulse given to the ball.
(b) If the ball is in contact with the wall for t = 0.2 s, what is the average force exerted by the wall on the ball?