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Homework Help: Static equilibrium and torque

  1. Sep 13, 2015 #1
    1. The problem statement, all variables and given/known data
    A 10 000-N shark is supported
    by a rope attached to a 4.00-m
    rod that can pivot at the base.
    Calculate the tension in
    the cable between the rod
    and the wall, assuming the
    cable is holding the system
    in the position shown in Figure


    2. Relevant equations

    3. The attempt at a solution
    (10000N)(4cos60) = (Tcos20)(4sin60)
    T = 6144 N

    Why is it wrong?
  2. jcsd
  3. Sep 13, 2015 #2
    You've only taken the horizontal component of the cable. What about the vertical component?
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