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classical mechanics

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noun Physics.
the branch of mechanics that is based on Newton's laws of motion and that is applicable to systems that are so large that Planck's constant can be regarded as negligibly small (distinguished from quantum mechanics).
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Also called Newtonian mechanics.

Origin of classical mechanics

First recorded in 1930–35
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

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