1. The problem statement, all variables and given/known data A block M=2kg rests against a spring (K=2000n/m) compressed by 10cm. When released, the block is propelled up a rough(Mu-k=0.1) incline. What is the max height reached by the block? 2. Relevant equations Well I was trying to solve this using Conservation of energy. Ei+W=Ef friction = muN N= mgcos(th) L= length of ramp H= height 3. The attempt at a solution .5(2000)(0.1)^2= 2(9.8)Hsin(10)-(Fiction)Lcos(180) I'm stuck here and really confused... am i missing a term and how do i find "L"