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A uniform Plank

  1. Aug 18, 2009 #1
    A uniform plank us supported by a hinge at one end. What is the magnitude (expressed as a multiple of the plank's weight Fg) of the upward force you have to exert on the other end to keep the plank at rest and level?
     
  2. jcsd
  3. Aug 18, 2009 #2

    kuruman

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    The sum of all the forces must be zero and the sum of all the torques must be zero. Go for it.
     
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