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Constant horizontal force and friction

  1. Jan 2, 2015 #1
    1. The problem statement, all variables and given/known data
    A 50 kg is pushed across a floor by a constant horizontal force of 200 N. What is the force of friction?

    2. Relevant equations
    Ffr = coeff*Fn

    3. The attempt at a solution
    I'm not sure how to find it as I don't know the coefficient.
    The answer says the answer is 200 N, but I don't know why it's equal to the applied force. The problem didn't say it was being moved at a constant velocity, it only has a constant applied force.
     
  2. jcsd
  3. Jan 2, 2015 #2

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    Check the problem statement for any other information. You feel it's incomplete as it stands, and it is incomplete as it stands.
     
  4. Jan 2, 2015 #3
    Is the problem written correctly and completely or is there some missing parts !!??
     
  5. Jan 2, 2015 #4
    That's all that was given. I guess whoever wrote the problem wrote it incompletely.
     
  6. Jan 2, 2015 #5

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    Solve it for the coefficient of friction necessary for constant velocity, and include an explanation that you're making an assumption based on the given answer.
     
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