Givens: X = Vt Y = ½gt² V = C / t Y = X tan Θ t = X / V Y= ½g(X²/V²) X Tan Θ = (gX²/2[C²/t²]) Tan Θ = (gt²X/2C²) 1/t² = (gX/2C²Tan Θ) 1/t = sqrt(gX/2C²Tan Θ) RPM = 60 sqrt(gX/2C²Tan Θ) I derived this out for my robotics team to calculate the required RPM for a motor that would spin a wheel that shoots frisbees. Because stupid games look good on college applications.

It's not my fault you fail so hard at math that you can't follow the algebraic order of operations to see why my equation is valid

there's no need to get all angry and shit; i did derive it out of my asshole, to each his own i suppose