1. A girl coasts down a hill on a sled, reaching a level surface at the bottom with a speed of 7 m/s. The coefficient of kinetic friction between runners and snow is 0.054, and the girl and sled together weigh 749 N. The acceleration of gravity is 9.8 m/s2 . How far does the sled travel on the level surface before coming to a rest? Answer in units of m. 2. F= ma f= mewN W=mg Vf=vo+2ad 3. I figure I need to know the accleration at the instant she reaches bottom of the hill to use a kinematics formula to solve for the distance, but I cannot figure it out without the angle of the incline. Plus, I don't know how to factor friction into that.