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Coulomb's Third Law of Friction

  1. Apr 24, 2013 #1
    According to Coulomb's third law of friction, the sliding friction if independent of the sliding speed.
    But if the sliding speed is very slow, wouldn't the sliding friction be more? The object's surface will get more time to interact with the surface of the floor and static friction can develop, since the surfaces will become interlocked because they will have more time.
    Thanks! :)
  2. jcsd
  3. Apr 24, 2013 #2


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    Staff: Mentor

    Coulomb's third law of friction is an approximation, useful in some velocity range for some types of friction. If the movement is too slow or too fast, the law is not valid any more.
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