[quote]ORIGINAL: bow_hunter44

Oh puhleeze... mometum is in the x and y coordinate?? Say what? A projectile travels in an arc, called a parabola. The path of a parabola can be depicted on an coordiante plane, using x and y coordinates. I know that sounds condesending, only because it is.

Velocity is a vector quantity. Since momentum is the product of a scalar quantity (mass) and a vector quantity (velocity) it to is a vector quanity. The same argument can be made about kinetic energy.


Momentum is a vector quantity. However, most text books work in a vacuum and tell you to ignore the effects of gravity and the angle

Arthur
I always thought velocity was scalar and momentum was a vector(?).

You are correct sir.