There isn't really any such thing as regular yoga. I do know that in the US, many people associate yoga with hatha yoga, which usually means that the focus is on the building blocks of poses and on stretching-type poses.
Inertia is resistance to change. You hate looking at people's feet and yet you stay in your job as a shoe salesman year after year.
THE GREATER THE MASS OF A BODY IN MOTION, THE GREATER THE INERTIA. Momentum. inertia = mass = m In case of rotation it is inertia moment (mr2) Its weight That determines how fast or slow it will go. And how hard it will be to speed it up or slow it down.