question from my Physics 1 class (qualitative explanation?)

[Prodigy54321]

I'm learning about projectile motion [img]/images/graemlins/tongue.gif[/img]...the question is..

What is the angle of projection from the ground for which the range is a maximum? Can you give a qualitative explanation?

45% obviously..then I wrote out an explanation about how the range is a maximum when sin2(theta) is at it's maximum of 1...2(theta) = 90 degrees....(theta) = 45 degrees

is this considered a "qualitative explanation?"...I think it's more of a quantitative explanation..not sure what my professor is looking for though.

sorry about the stupid question [img]/images/graemlins/smile.gif[/img]