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    The coefficients of static and kinetic frictions for plastic on wood are 0.50 and 0.40,
    respectively. How much horizontal force would you need to apply to a 3.0 N plastic calculator to start it moving from rest?

    © BrainMass Inc. brainmass.com March 4, 2021, 11:48 pm ad1c9bdddf
    https://brainmass.com/physics/applied-physics/physics-problem-static-and-kinetic-friction-455336

    Solution Preview

    Hi,

    Since the object is at rest initially, we use the value of the coefficient of static friction
    u = ...

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