1. The problem statement, all variables and given/known data A projectile is thrown from the top of the ramp. Find the angle [itex]\theta[/itex] of the throw that gives a max range R down the ramp. [itex]\phi[/itex] is the angle made from the base of the ramp to the x-axis. 2. The attempt at a solution Tried a number of times but failed to get anything that seemed moderately appropriate, i.e. getting long equations that are obviously too complex to be the answer. Appreciate the help. Thanks.