Question

A 2.56-kg steel ball strikes a wall with a speed of 10.7 m/s at an angle of θ=60 ​with the surface. It bounces off with the same speed and angle (see figure below). If the ball is in contact with the wall for 0.161s, what is the average force exerted by the wall on the ball? Make sure to include a sign (positive or negative) for the force. Assume right and up are the positive directions.

a) What is the horizontal component of the average force (Fx)? (Give your answer with the correct sign; right is positive)

b) What is the vertical component of the average force (Fy)? (Give your answer with the correct sign; upward is positive)

Please solve for a and b!

Answer 1