Well I feel stupid..
Someone hinted to "find the derivative of the positive vector".. Which meant next to nothing to me, but I decided to give it a try anyway and use the coefficients I would've gotten if I took the derivative of the whole equation. It turns out the "mutiplicative factors" I...
Hm.. I think I understand a little better now..
So I have the component direction and magnitude, but finding the dot product of r and i or r and j gives me the magnitude of r which is the component of either i or j? And that magnitude is the factor I'm missing?
Somewhat.. Researching the answer earlier through my textbook actually led me to the exact page with the scalar product definition, but I couldn't figure out how it tied into the problem.
It's actually a couple chapters back from the original problem, but now I'm in the process of reading it...
Homework Statement
If http://net.dinhweb.de/vector.gif ,[/URL] where b and c are positive constants, when does the velocity vector make an angle of 45.0 with the x- and y-axes?
Homework Equations
I'm not sure.. I've got a million equations but none of them seem to fit the problem the way I...