Nurkjõudlust
Nurkjõudlust, often translated as rotational inertia or moment of inertia, is a fundamental concept in physics describing an object's resistance to changes in its rotational motion. It is the rotational analog of mass, which measures resistance to changes in linear motion. Just as a larger mass requires more force to accelerate linearly, a larger nurkjõudlust requires more torque to accelerate rotationally.
The nurkjõudlust of an object depends not only on its mass but also on how that mass
Mathematically, nurkjõudlust is calculated by summing the product of each infinitesimal mass element and the square