Physics - Rotation Question with Solution | TestHub

P. Torque acting on a particle about the origin is given by $\vec{r}\times \vec{F}$. Q. For a rigid body, the net torque is related to angular acceleration by ${\vec{\tau }}_{net}=I\vec{\alpha }$. R. Rotational equilibrium occurs when the net torque acting on the body is zero, $\sum \vec{\tau }=0$. S. Angular impulse is the change in angular momentum, and its SI unit is N m s (or J s).