[tex]A = (1,1,-2)[/tex]
[tex]C = (0,1,-5)[/tex]
(in cartesian coordinates)
Let A and C be drawn from a common origin and let C rotate about A with an angular velocity of 2 rad/s. Find the velocity of the head of C.
[tex]v = w x r[/tex]
The Attempt at a Solution
w = 2 rad/s
I know I have to take the cross product of w and C (w x C = v) but I am having problems making w as a vector. Initially I thought I would use cylindrical coords and say that it's moving in the phi direction, unfortunately I don't know if that assumption is correct.
Can anyone give me a pointer on how I should begin to write w as a vector?