Mechanics (from Ancient Greek: μηχανική, mēkhanikḗ, lit. "of machines")[1][2] is the area of mathematics and physics concerned with the relationships between force, matter, and motion among physical objects.[3] Forces applied to objects result in displacements, or changes of an object's position relative to its environment.

Theoretical expositions of this branch of physics has its origins in Ancient Greece, for instance, in the writings of Aristotle and Archimedes[4][5][6] (see History of classical mechanics and Timeline of classical mechanics). During the early modern period, scientists such as Galileo, Kepler, Huygens, and Newton laid the foundation for what is now known as classical mechanics.

As a branch of classical physics, mechanics deals with bodies that are either at rest or are moving with velocities significantly less than the speed of light. It can also be defined as the physical science that deals with the motion of and forces on bodies not in the quantum realm.

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