wow! glad i took calc based physics. sylvan is correct when he says you can learn all this in an entry level calculus based physics course (provided you've taken calc 1 and 2). you guys are arguing with someone based on something someone else explained in laymans terms, with someone who knows the math, the equations, where they are from, and what they do. sylvan isn't inventing anything and has tried to explain things and has given you the equations.

this is like when that person was saying his arrow would go a horizontal distance of 20 yds faster when shot out of a treestand than when shot off the ground, assuming gravity would accelerate his arrow in a horizontal plane, which is impossible.