[单选题]
During a hockey game, a puck x4 run9o xaxw t:.a3r-i2 guoo nbj) n0iz9zj9 y25k7gxs given an initial speed of 10 m/s. It slides 50 m on the ice before it stops. What is the coefficient of kinetic friction between the puck and the ice ggbx 9ou9on0 niyz52j2j)7k z?
