coefficient of friction

Definition of coefficient of friction

: the ratio of the tangential force that is needed to start or to maintain uniform relative motion between two contacting surfaces to the perpendicular force holding them in contact, the ratio usually being larger for starting than for moving friction

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Cite this Entry

“Coefficient of friction.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/coefficient%20of%20friction. Accessed 9 December 2019.

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