1. The problem statement, all variables and given/known data Muzzle velocity at A = Vo. Determine the two angles, theta 1 and theta 2. A is seperated from B by a distance L in the x direction and a height H. (B is on a hill above A). 2. Relevant equations 3. The attempt at a solution I feel that the important facts of this problem is that sin(theta1)Vo * t1 - gt1^2 = sin ( theta2 )Vo * t2 - gt2^2, since the y displacement for both projectiles are identical. Similarly, we have that the x projectiles are the same, so that cos (theta1 )Vo * t1 = cos ( theta 2 )Vo * t2. With these equations, I have two variables two equations, but I cannot figure out how/if it is possible to solve these to isolate a variable. I am guessing that there is probably an easier way to do this, so a small hint would be greatly appreciated! thanks guys.