🎬The moment of inertia by comparing two discs rotating around different axes

The moment of inertia, an object's resistance to rotational motion, is determined solely by how its mass is distributed around a fixed axis; as the disc's mass is more concentrated near the axis, as in the in-plane rotation, its moment of inertia is lower, making it easier to spin and requiring less energy to achieve the same angular velocity compared to the perpendicular axis where mass is more dispersed.

The Outer Product and Tensor Transformations | Condensed Notesviadean on Notion