Moment of Inertia Definition
Moment of Inertia is the tendency of a body in rotational motion which opposes the change in its rotational motion due to external forces. The Moment of Inertia behaves as angular mass and is called rotational inertia. Moment of Inertia is analogous to the mechanical Inertia of the body.
MOI is defined as the quantity expressed by the sum of the product of the mass of every particle with the square of its distance from the axis of rotation for any particle performing the rotational motion.
Unit of Moment of Inertia
Moment of Inertia is a scalar quantity and the SI unit of the Moment of Inertia is kgm2.
Moment of Inertia Dimensional Formula
Since the Moment of Inertia is given as the product of mass and square of distance. Its dimensional formula is given by the product of the dimensional formula of mass and the square of the dimensional formula of length. The dimensional formula of the moment of inertia is, ML2
Moment of Inertia
Moment of inertia is the property of a body in rotational motion. Moment of Inertia is the property of the rotational bodies which tends to oppose the change in rotational motion of the body. It is similar to the inertia of any body in translational motion. Mathematically, the Moment of Inertia is given as the sum of the product of the mass of each particle and the square of the distance from the rotational axis. It is measured in the unit of kgm2.
Let’s learn about the Moment of Inertia in detail in the article below.
Table of Content
- Moment of Inertia Definition
- Moment of Inertia Formula
- Factors Affecting Moment of Inertia
- How to Calculate Moment Of Inertia?
- Moment Of Inertia Formula for Different Shapes
- Radius of Gyration
- Moment of Inertia Theorems
- Moments of Inertia for Different Objects
Contact Us