- #1

atmega-ist

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## Homework Statement

A projectile is fired in such a way that that its horizontal range is three times its maximum height. What is the angle of projection?

## Homework Equations

R = V

_{o}

^{2}sin(2theta)/g

H = (V

_{o}sin(theta)

^{2}/2g

R = 3H

Cancel V

_{o}

^{o}, g and sin(theta) to leave 4/3 tan(theta) = 1

## The Attempt at a Solution

This is, as I've seen, not a new question. I'm good with how to solve it but where I see it should be tan(theta) = 4/3, I keep getting (as stated above) 4/3tan(theta) = 1 where if I were to bring the 4/3 to the other side I would end up with tan(theta) = 3/4.

My only problem is that I can't figure out how this 4/3 is ending up on the opposite side of the tan(theta). I don't know if I'm completely missing something or if it's just because it's 1:30 am...

Thanks