A hockey puck is hit on a frozen lake and starts moving with a speed of 13.4 m/s. Five seconds later, its speed is 5.40 m/s.
(a) What is its average acceleration?
_________ m/s2
(b) What is the average value of the coefficient of kinetic friction between puck and ice?
______
(c) How far does the puck travel during the 5.00 s interval?
_______________