A ball having a mass of 170 g strikes a wall with a speed of 5.0 m/s and rebounds with only 50% of its initial kinetic energy.
(a) What is the speed of the ball immediately after rebounding?
____m/s
(b) What is the magnitude of the impulse on the wall from the ball?
____N·s
(c) If the ball was in contact with the wall for 7.4 ms, what was the magnitude of the average force exerted by the wall on the ball during this time interval?
____N