A disc rotates about a vertical axis passing through its centre
PHYSICS · Single correct · A Level · Physics · Engineering physics · Engineering physics
Problem
A disc rotates about a vertical axis passing through its centre. According to the right-hand rule used in rotational kinematics, which of the following corresponds to a positive angular velocity?
(a) Anticlockwise rotation when viewed from above, with the angular velocity vector directed downward
(b) Clockwise rotation when viewed from above, with the angular velocity vector directed upward
(c) Anticlockwise rotation when viewed from above, with the angular velocity vector directed upward
(d) Anticlockwise rotation when viewed from below, with the angular velocity vector directed upward