_FOR 10 POINTS--_name
The rotational variety is equal to the change in angular velocities times the rotational inertia. In a collision, it is defined as the integral over time of the collision force, and its magnitude is given as the average force times the effective duration of the collision. _FOR 10 POINTS--_name this quantity, the change of momentum of a body in motion.
The rotational variety is equal to the change in angular velocities times the rotational inertia.
{impulse}