Question 1: A hockey puck slides with an initial speed of 50.0 m/'s on a large frozen lake. The coefficient of kinetic friction between the puck and the ice is 0.030. Determine the speed of the puck after 10.0 s Um A Question 2: Two masses, connected by a massless string, hang over a pulley that connects two inclines (Figure 8). Mass m, is 8.0 kg, and mass m, is 12 kg. The coefficient of kinetic friction for both inclines is 0.21. Determine the acceleration of the two masses. m ~#, = 26' Figure 8