The direction of the angular velocity vector is along

Options

A. the tangent to the circular path
B. the inward radius
C. the outward radius
D. the axis of rotation

Answer

D

Explanation

`v = r xx omega`.
v is the tangential. If r is in the X Y plane and v is also in this plane, `omega` is in the Z direction, + or - is decided by whether the particle is rotating in the anticlockwise direction or clockwise direction.