60 kg steel ball strikes a massive wall at 10.5 m/s at an angle of alpha = 59.5 with the plane of the wall. It bounces off with the same speed and...

A 2.60 kg steel ball strikes a massive wall at 10.5 m/s at an angle of alpha = 59.5° with the plane of the wall. It bounces off with the same speed and angle. If the ball is in contact with the wall for 0.218 s, what is the magnitude of the average force exerted on the ball by the wall?