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Factory boxes

  1. Mar 27, 2013 #1
    1. At the end of a factory production line, boxes start from rest and slide down a 34° ramp 5.4 m long. If the slide is to take no more than 3.2 s, what is the maximum allowed frictional coefficient?



    2. Relevant equations
    Ff= μ F


    3. The attempt at a solution




    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Mar 27, 2013 #2
    Hi Robertoalva,

    Could you show where you are stuck in the problem please?
     
  4. Mar 27, 2013 #3
    I don't know how to use the equation for the frictional coefficient! I suppose that I have to use another equation that uses time, but i'm not so sure!
     
  5. Mar 27, 2013 #4
    Well, frictional coefficient is the ratio of the magnitudes of the normal force and maximum frictional force possible.

    Knowing that, what would be the acceleration of the block?
     
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