Where I represents the moment of inertia, m represents the mass of the object, and r represents the distance of the object around the rotation axis.

1. What is the moment of inertia?

Let's first look at the relationship between quality and Niuer:

From Newton's law, we know that mass is a measure of the inertia of an object.

Definition of moment of inertia: What is the sum of the product of the mass of each particle in a rigid body and the square of the vertical distance from the particle to the axis? Measurement of moment of inertia of rigid body? .

The essence of angular momentum theorem is Niu Er.

2. Two simple ways to understand the moment of inertia:

Simple understanding of moment of inertia 1;

Force analysis of rotating object on the center of rotation