Free fall acceleration from height
==================================

**Free fall** is any motion of a body where gravity is the only force acting upon it.
**Free fall acceleration** is the acceleration the body experiences during the free fall.

**Notation:**

#. :math:`G` (:code:`G`) is :attr:`~symplyphysics.quantities.gravitational_constant`.

.. py:currentmodule:: symplyphysics.laws.gravity.free_fall_acceleration_from_height

.. py:data:: free_fall_acceleration

    Free fall :attr:`~symplyphysics.symbols.classical_mechanics.acceleration` of the body.

Symbol:
    :code:`a`

Latex:
    :math:`a`

Dimension:
    :code:`acceleration`


.. py:data:: planet_radius

    :attr:`~symplyphysics.symbols.classical_mechanics.radius` of the planet.

Symbol:
    :code:`r`

Latex:
    :math:`r`

Dimension:
    :code:`length`


.. py:data:: elevation

    Elevation (:attr:`~symplyphysics.symbols.classical_mechanics.height`) of the body from the planet's surface.

Symbol:
    :code:`h`

Latex:
    :math:`h`

Dimension:
    :code:`length`


.. py:data:: planet_mass

    :attr:`~symplyphysics.symbols.basic.mass` of the planet.

Symbol:
    :code:`m`

Latex:
    :math:`m`

Dimension:
    :code:`mass`


.. py:data:: law

    :code:`a = G * m / (r + h)^2`


    Latex:
        .. math::
            a = \frac{G m}{\left(r + h\right)^{2}}