A steel ball of mass 0.76 kg strikes a brick wall in anelastic collision. Incomming, it strikes the wall moving 63 degreesdirectly above the line normal (perpendicular) to the wall. Itrebounds off the wall at an angle of 63 degrees directly below thenormal line. The balls speed is 8.4 m/s immediatly before andimmediatly after the collision, which last 0.18s. What is the magnitude of the average force exerted by the ball on thewall?