Abstract
THE ordinary static friction apparatus with one mass m hanging over a pulley and connected to another mass M resting on the friction board may be used to determine the kinetic coefficient. Let m be more than sufficient just to move M, and let h be the vertical height over which m is allowed to accelerate M; then, if x is the extra distance along the board traversed by M before it is brought to rest by friction, the average coefficient is given by:
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RUSS, S. Kinetic Friction Coefficient. Nature 147, 712 (1941). https://doi.org/10.1038/147712b0
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DOI: https://doi.org/10.1038/147712b0
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