1. The problem statement, all variables and given/known data A 100 g granite cube slides down a 35 degree frictionless ramp. At the bottom, just as it exits onto a horizontal table, it collides with a 215 g steel cube at rest. How high above the table should the granite cube be released to give the steel cube a speed of 200 cm/s? 2. Relevant equations Conservation of momentum and energy equations. I don't know if there are more? 3. The attempt at a solution For momentum: .1v1=.1v1_f+.215v2_f For energy: .1(9.81)h=.5(.1)v1_f^2+.5(.215)v2_f^2 I know I'm supposed to solve a system of equations, but I have way too many variables right now. What am I doing wrong? What should I do next?