1. The problem statement, all variables and given/known data A hockey puck travels across the ice at 6.5m/s. the puck travels a total of 7.6m. What is the coefficient of friction between the puck and the ice. 2. Relevant equations fnet=ma Ffr= coefficient of friction x force normal 3. The attempt at a solution I found my acceleration, but I feel like I cannot get the coefficient of friction without the mass. Please help.