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Homework Help: No idea how to find applied forced based on kinetic friction and acceleration.

  1. Apr 15, 2012 #1
    1. The problem statement, all variables and given/known data
    A 10.0kg box is accelerated from rest to 4.00 m/s in 1.00s. The force of kinetic friction on the box is 5.00N.
    A) What is the size of the applied force?

    B)What is the coefficient of sliding friction?

    2. Relevant equations
    The five kinematic equations?
    μ = Ff/Fn
    Fn= mg

    3. The attempt at a solution
    No idea.
  2. jcsd
  3. Apr 15, 2012 #2


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    You start by drawing a diagram of the forces acting on the box, and then use Newton's second law.
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