So, I've actually attached the diagram illustrating the problem and my attempt at it. The problem goes like this; I have a cave which is inclined at theta. I have a ball inside the cave which is at a distance \(L\) from the innermost portion of the cave. I kick the ball at a velocity \(v_0\) and at an angle alpha to the horizontal. Find \(\alpha\), in terms of \(L\), \(v_0\) and \(\theta\), such that the range is maximized.
Could someone help me out, please? Having a bit of difficulty visualizing what this would look like.