1. The problem statement, all variables and given/known data [PLAIN]http://img703.imageshack.us/img703/8599/physicsks.png [Broken] 2. Relevant equations I'm considering cross product and dot product rules, yet I don't know where to begin with this one. 3. The attempt at a solution I have two pages of scratch paper that is littered with failed attempts to solve the problem. -There are no values for a or b given. -Is there even enough information to solve these problems?