How do you find the angle of a fired projectile given the initial velocity and the distance it travels?

Question

anonymous · Answer

Use the formula for range!

azureilai · Answer

so the y=vt-(1/2)gt^2 formula?

anonymous · Answer

Not really.. haven't u derived the formula for range?
if not so.. then.. u can do it conceptually.. consider the horizontal motion!

azureilai · Answer

I haven't learned about derivations yet in math. But would it be something long the lines of
$$y=(vsin(\theta))\frac{ x }{ v_x }-\frac{1}{2}g(\frac{ x }{ v_x })^2$$?

theeric · Answer

http://hyperphysics.phy-astr.gsu.edu/hbase/traj.html#tra4 :)