Problem A skier starts from rest at the top of a frictionless incline of height 20.0 m, as in Figure 5.19. As the bottom of the incline, the skier encounters a horizontal surface where the coefficient of kinetic friction between skis and snow is 0.225. Find the horizontal distance the skier travels before coming to rest if the incline also has a coefficient of kinetic friction equal to 0.225. I tried setting it up like this. I found the height(y) of the incline by doing 20/sin20= 58.476 -0.225mgcos20(58.476)- 0.225mgd= 0-mgy Now I dont know what to do, help. How do I get rid of the m's, cause there are 3 this time. Am I doing something wrong.