I don't know if I am just looking too much into the problems or what, but I am having a very hard time determining what is what in the problems. I am not confident on what I pick as Vnaught, V, x, y, etc .... Will someone please help? I will tell you how I determine it, and you can correct me. x=where it lies on the x axis? y=where it lies on the y axis? ... Both of these are determined by me? Correct? So is V the velocity of the object? And what is Vnaught? These are all pertaining to 2D equations.