How is angular momentum related to torque?

1 Answer
Apr 28, 2018

\vec{\tau} = \frac{d\vec{L}}{dt};
\vec{L} - Angular Momentum; \vec{\tau} - Torque;

Explanation:

Torque is the rotational equivalent of force and Angular Momentum is the rotational equivalent of Translational Momentum.

Newton's second law relates Translational Momentum to Force,
\vec{F} = (d\vec{p})/(dt)

This can be extended to rotational motion as follows,
\vec{\tau}=(d\vec{L})/(dt).

So Torque is the rate of change of Angular Momentum.