Acceleration is speed derivative ================================ *Acceleration* describes how quickly speed changes with time. **Notes:** #. It still holds for special relativity and general relativity cases, but general relativity requires 4-velocity and 4-acceleration instead of speed and acceleration. See `Wikipedia – Acceleration (special relativity) `__ for reference. **Links:** #. `Wikipedia – Instantaneous acceleration `__ .. py:currentmodule:: symplyphysics.classical_mechanics.kinematics.translational_motion.acceleration_is_speed_derivative .. py:data:: time :attr:`~symplyphysics.symbols.basic.time`. Symbol: :code:`t` Latex: :math:`t` Dimension: :code:`time` .. py:data:: acceleration :attr:`~symplyphysics.symbols.classical_mechanics.acceleration` of the body as a function of time. Symbol: :code:`a(t)` Latex: :math:`a{\left(t \right)}` Dimension: :code:`acceleration` .. py:data:: speed :attr:`~symplyphysics.symbols.classical_mechanics.speed` of the body as a function of time. Symbol: :code:`v(t)` Latex: :math:`v{\left(t \right)}` Dimension: :code:`velocity` .. py:data:: law :code:`a(t) = Derivative(v(t), t)` Latex: .. math:: a{\left(t \right)} = \frac{d}{d t} v{\left(t \right)}