PHYSICS · Single correct · AP · Physics 1: Algebra-based · Torque and Rotational Dynamics · Torque and Rotational Dynamics
Problem
According to Newton’s first law for rotation, what happens to the angular velocity ω of a rigid object when the net external torque on the object is zero?
(a) ω decreases steadily until it becomes zero.
(b) ω remains constant in magnitude but its direction can change.
(c) ω remains constant in both magnitude and direction.
(d) ω increases steadily in the direction of the last applied torque.