Question

The speed of an ice-hockey puck decreases 45.00 m/s to 44.67 m/s in coasting for 2 seconds. Calculate the coefficient of kinetic friction between the puck and the ice.

Answer 1

Answer:

Explanation:  force is defined as rate of change of momentum

                 then force = mΔv/t

                        n mg = m (0.33)/2

                        n x 10 = 0.16

                              n= 0.016

                                                   n is co.eff of kinetic friction

               hope u got this