1. The problem statement, all variables and given/known data An object is traveling at 10m/s. along an inclined surface of an angle 10°. How far does it go up the bank? How fast will it be going when it travels back down? Coefficient of friction is .15 2. Relevant equations Ei = Ef Ef - Ei = Eloss W = Fd 3. The attempt at a solution I dont really know where to start. I made a FBD. ∑Fx = gsinθ+ukgcosθ = ma There are two unknowns. I dont know the distance. and I dont know how much energy is lost in the displacement. If there was no friction I could solve it using Ei = Ef but with friction I dont know where tostart. Can anyone tell me the first step?