Answer:
B) Angular velocity
Explanation:
The equivalent of Newton's second law for rotational motions is
[tex]\tau = I \alpha[/tex]
where
[tex]\tau[/tex] is the net torque on a system
I is the moment of inertia
[tex]\alpha[/tex] is the angular acceleration
From the formula, we observe that if a constant net torque (=different from zero) is applied to an object, than the angular acceleration of the object [tex](\alpha)[/tex] is non-zero and constant.
But angular acceleration is defined as the rate of change of the angular velocity, [tex]\omega[/tex]:
[tex]\alpha = \frac{d\omega}{dt}[/tex]
so, a non-zero angular acceleration means that the angular velocity is changing, so the correct answer is B.
