Le coefficient de frottement (ou coefficient de friction) est une valeur numérique qui mesure la résistance au mouvement entre deux surfaces en contact. Il est représenté par la lettre grecque µ et n’a pas d’unité. Le coefficient de frottement joue un rôle important dans la mécanique et est crucial pour comprendre comment un objet peut glisser ou rester en place sur une surface.
Frottement statique :
Frottement dynamique (ou cinétique) :
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