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Homework Help: Static Equilibrium and Balance

  1. Nov 3, 2007 #1
    1. The problem statement, all variables and given/known data
    A 43kg sign hangs by a thin wire slightly off center on a 2.2m long, thin rod. Each end of the rod is supported by a thin wire. the mass of the rod is 18.3kg

    1. Determine the tension in each of the 2 wires that support the rod.

    2. How far off-center is the wire supporting the sign? Is it toward the left or right end?

    3. If the wire on the right were to snap, what would the angular acceleration of the rod about its left end be during the moment after it snapped?

    2. Relevant equations
    [tex]\Sigma[/tex]Fx = 0
    [tex]\Sigma[/tex]Fy = 0
    [tex]\Sigma[/tex][tex]\tau[/tex] = 0

    xcm = ([tex]\Sigma[/tex]mi*xi) / M

    3. The attempt at a solution
  2. jcsd
  3. Nov 4, 2007 #2
    Something amiss in the question.. or, there shouldn't be (2) part.
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