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## Homework Statement

If http://net.dinhweb.de/vector.gif [Broken],[/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 need. I know this isn't relevant to the question, but the prompt asks for "t=?"

## The Attempt at a Solution

I've got this thing worked down to b divided by c (b/c), but apparently my "answer is off by a multiplicative factor." I've already taken a few shots at guessing the coefficient I need, but no luck there, so I decided to give this a try.

I didn't think any kind of "multiplicative factor" was necessary because equal "i hat" and "j hat" values would give a 45 degree angle. Apparently not and here I am stuck on this problem

Any kind of help would be greatly appreciated =]

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