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:**

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

..
    TODO same law `kinematics/rotational_inertia/rotational_inertia_of_particle`, remove this one?

.. py:currentmodule:: symplyphysics.definitions.rotational_inertia_is_mass_times_squared_radius

.. py:data:: rotational_inertia

    :attr:`~symplyphysics.symbols.classical_mechanics.rotational_inertia` of the material point.

Symbol:
    :code:`I`

Latex:
    :math:`I`

Dimension:
    :code:`length**2*mass`


.. py:data:: mass

    :attr:`~symplyphysics.symbols.basic.mass` of the material point.

Symbol:
    :code:`m`

Latex:
    :math:`m`

Dimension:
    :code:`mass`


.. py:data:: radial_distance

    :attr:`~symplyphysics.symbols.classical_mechanics.distance_to_axis` of rotation.

Symbol:
    :code:`r`

Latex:
    :math:`r`

Dimension:
    :code:`length`


.. py:data:: definition

    :code:`I = m * r^2`


    Latex:
        .. math::
            I = m r^{2}