The problem has a picture of a rod on a 3 dimensional coordinate system and gives the measurements. The rod rotates around the line joining each of the two endpoints with a constant angular velocity of 12 rad/s. The problem has you do things in steps, first finding the components in x, y, and z and then the unit vectors in x, y, and z - both simple to do. Next, it asks for the angular velocity vector of the rod??? It wants the answer in radians/seconds. The closest equations I can find to helping are v= w X r or w= derivative of theta / dt Thanks for any insight.