.. _rst_dimensions:


=============================
Dimensions and units
=============================

Below is a table showing the dimensions and its associated units in AGX Dynamics.
Where possible, SI units are being used.
Many of the units are derived from the gravitational acceleration :math:`g`. It has a default value in AGX Dynamics of 9.80665 m/s\ :sup:`2` and can be found in `agx/Math.h`.


.. _table_dimensions:

.. csv-table:: Dimensions and units used in AGX Dynamics.
   :align: center
   :widths: 3, 3
   :header: "Dimension", "Unit"

   "**Acceleration**",                "m/s\ :sup:`2`"
   "**Angle**",                       "rad"
   "**Angular velocity**",            "rad/s"
   "**Angular acceleration**",        "rad/s\ :sup:`2`"
   "**Cohesion**",                    "Pa"
   "**Compliance (rotational)**",     "rad/Nm"
   "**Compliance (translational)**",  "m/N"
   "**Damping, Spook***",             "s"
   "**Damping (rotational)**",        "Nms/rad"
   "**Damping (translational)**",     "Ns/m"
   "**Density**",                     "kg/m\ :sup:`3`"
   "**Electric potential**",          "V"
   "**Electric resistance**",         "Ohm"
   "**Force**",                       "N"
   "**Length**",                      "m"
   "**Mass**",                        "kg"
   "**Moment of inertia**",           "kg m\ :sup:`2`"
   "**Pressure**",                    "Pa"
   "**Speed**",                       "m/s"
   "**Stiffness (rotational)**",      "Nm/rad"
   "**Stiffness (translational)**",   "N/m"
   "**Torque**",                      "Nm"
   "**Young's Modulus**",             "Pa"

  

*\*Spook damping is the damping used in AGX Dynamics and is the time in seconds a constraint have to fulfill its violation.*