1. The problem statement, all variables and given/known data Children sled down a 41m long hill inclined at 25°. At the bottom, the slope levels out. If the coefficient of friction is 0.12, how far do the children slide on the level ground? 2. Relevant equations This question is from the force chapter of my textbook, so I believe on force equations are to be used and not the conservation of energy. 3. The attempt at a solution I have only gotten as far as drawing a force diagram. I have labelled all the forces to include, the normal forces, force of gravity down the plane, and the frictional force up to the plane. I dont know where to go from here since all these forces seemingly depend on knowing the mass.