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Coefficient of kinetic friction of a block

  1. Nov 18, 2007 #1
    Mk

    1. The problem statement, all variables and given/known data
    The coefficient of kinetic friction of a block depends on:
    A. normal force.
    B. surface area of the 2 materials
    c. mass of block
    d. speed of block
    e. what the 2 materials are made of


    2. Relevant equations



    3. The attempt at a solution
    SInce friction of a block depends on what the 2 materials are made of then i believe the answer would be E since Mk is a type of friction
     
  2. jcsd
  3. Nov 18, 2007 #2

    dynamicsolo

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    Homework Helper

    Among the choices available, I'd agree that (e) is correct.
     
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