During a Washington Capitals hockey game, a player hits a 0.16 kg puck giving it an initial velocity of 18.0 m/s. The puck takes 3.0 s to reach the other end of the ice rink. By the time the puck hits the wall it has slowed down to 15.0 m/s. The coeffcient of kinetic freition
between the rubber puck and the ice is,
Mk = 0.12. what is the average
acceleration of the puck as it slides across the ice?