This is a simple simulator made to see the path followed by an object at different initial speed, angle and height. Set each of them how you prefer. Then, click on simulate. You will appreciate that, whe the angle surpases 90º, the object moves to the left. Substract 90 to any angle which surpases 90º, to know which will be the initial angle - but measured from right to left.
Each small line marks one meter on reality.