State the correct expression for the average angular velocity of a body that turns…

PHYSICS · Single correct · AP · Physics 1: Algebra-based · Torque and Rotational Dynamics · Torque and Rotational Dynamics

Problem

State the correct expression for the average angular velocity

\omega_{\mathrm{avg}}

of a body that turns through an angular displacement

\Delta\theta

in a time

\Delta t

. (a)

\displaystyle \omega_{\mathrm{avg}} = \frac{\omega_i+\omega_f}{2}

(b)

\displaystyle \omega_{\mathrm{avg}} = \frac{\Delta\theta}{\Delta t}

(c)

\displaystyle \omega_{\mathrm{avg}} = \frac{d\theta}{dt}

(d)

\displaystyle \omega_{\mathrm{avg}} = \frac{\Delta t}{\Delta\theta}