Not too long ago, an interesting thing happened at the Canadian Open Golf Tournament. Tiger Woods bounced his tee shot off of a young spectator’s head in the last round of the tournament. The ball made contact for 0.08 seconds, and struck the boy’s head at a velocity of 32 m/s, 25 from a tangent on the surface of his cranium. It bounced off at an angle of 22(, with a speed of 25 m/s. What was the average acceleration of the ball as it amazingly made its way back onto the fairway?

how did you find the change in momentum?