We filmed an elite volleyball player during the execution of a spike. From the videotape, you can use your skills to determine the position of the ball and therefore the velocity before (3.6 m/s) and after (25.2 m/s) impact. You determined that the hand was in contact with the ball for 18 ms. Knowing the ball has a mass of 0.27 kg, what average force did the player exert on the ball?