Can coefficient of static or kinetic friction be greater than one?
If yes, then is there example of any material which is practically in use?
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Check out the Engineering Toolbox website.!for example they indicate a static friction value of 2.05-1.35 for clean and dry aluminum to aluminum contact – Bob D Jan 02 '20 at 11:31
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Thanks . It's helpful – Mahesh Jan 02 '20 at 11:32
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1Does this answer your question? Is coefficient of friction is always less than unity? – John Rennie Jan 02 '20 at 11:52