Rotational inertia is mass times squared radius

Rotational inertia, or moment of inertia, is a physical quantity that describes a body’s ability to be inertial during rotation. It is a rotational analog of mass in linear motion.

Conditions:

1. The object is a material point, rigid and uniform.

rotational_inertia

rotational_inertia of the material point.

Symbol:

I

Latex:

\(I\)

Dimension:

length**2*mass

mass

mass of the material point.

Symbol:

m

Latex:

\(m\)

Dimension:

mass

radial_distance

distance_to_axis of rotation.

Symbol:

r

Latex:

\(r\)

Dimension:

length

definition

I = m * r^2

Latex:

\[I = m r^{2}\]