The speed of a 4.0 n hockey puck, sliding across a level ice surface, decreases at the rate of 0.61 m/s2. the coefficient of kinetic friction between the puck and ice is: hint: find the puck's mass first.

The coefficient of the kinetic friction is u = 0.0622. You obtain a part of the frictional force from gravity, 9.81 m/s^2, and the remainder from the mass of the hockey puck. The deceleration is do from the sheer force on the ice to the hockey puck combined with the downward gravitational force