1. The problem statement, all variables and given/known data A hockey puck of mass 0.200kg is sliding along a smooth, flat section of ice at 18.0m/s when it encounters a patch of snow. After 2.50s of sliding through the snow it returns to smooth ice, continuing at speed of 10.0m/s. a) What is the change in momentum of the puck? I = m(v2 - v1) I = 0.200 (10-18) I=-1.60kg m/s b) What was the work done by the snow on the puck? c) what Average frictional force does the snow exert on the puck?