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What is the weight of the beam?

  1. Jun 11, 2008 #1
    1. The problem statement, all variables and given/known data
    A long uniform beam is pivoted at one end. A force of 300N is applied to hold the beam horizontally.
    [​IMG]
    What is the weight of the beam?

    2. Relevant equations
    Don't know which question to use... need help!


    3. The attempt at a solution
     
  2. jcsd
  3. Jun 11, 2008 #2
  4. Jun 11, 2008 #3

    Doc Al

    User Avatar

    Staff: Mentor

    Ask yourself:
    (1) What forces act on the beam? Where do they act?
    (2) What torque do they exert about the pivot point?
    (3) Since the beam is in equilibrium, what must be the net torque?
     
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