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1 April, 20:44

1. The coefficient of kinetic friction between an object and the surface upon which it is sliding is

0.25. The weight of the object is 20N. What is the force of friction?

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Answers (1)
  1. 1 April, 20:45
    0
    5 N

    Explanation:

    Friction force is normal force times coefficient of friction

    F = Fn μ

    On level ground, normal force equals weight.

    Fn = W

    Substitute:

    F = Wμ

    F = (20 N) (0.25)

    F = 5 N
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