+A [rigid body](/wiki/rigid_body) is an idealized solid where the distance between any two points remains constant, even when external forces are applied. It simplifies the study of [motion](/wiki/motion) and [dynamics](/wiki/dynamics), treating an object as perfectly undeformable.
+## See also
+- [Kinematics](/wiki/kinematics)
+- [Rotation](/wiki/rotation)
+- [Force](/wiki/force)
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