1. The problem statement, all variables and given/known data A skier, of mass 50 kg, pushes off the top of a hill with an initial speed of 5 m/s. Neglecting friction, how fast in m/s will he be moving after dropping 17 m in elevation? (Neglect friction, use g=10m/s2) 2. Relevant equations GPE = MGH KE =(1/2)mv^2 3. The attempt at a solution KE = (1/2)mv^2 KE = (1/2)(50)(25) KE = 625 GPE = mgh 625 = (50)(10)h 625 = 500h 1.25 = h If he's only 1.25 meteres up, I can't drop him seventeen meters, so I know I'm doing something wrong. Please help. Also. I'm sorry to post so often, but this homework is killing me.