1. The problem statement, all variables and given/known data A stone is thrown down a slope. I am given the Range of the slope and the max height from spot thrown. R= 50m h= 12m 2. Relevant equations I need to determine the magnitude of Vo and inital theta. 3. The attempt at a solution First I need to find V_o: I feel that the only relevant portion to find the initial velocity is from the spot thrown to the max height where V_yo is 0. I broke up the components of velocity so that: V_xo=vcos(theta) V_yo=vsin(theta) However, I'm lost after this because I don't know t. My first idea was to find t, but I was having problems finding an equation that doesn't use v, theta, in a time equation. My second idea was to find an equation that avoids time such as v_y^2=V_yo^2-g(y-yo). I haven't attempted the initial theta part yet.