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Flying Buttress

  1. Apr 11, 2008 #1
    1. The problem statement, all variables and given/known data

    A symmetric building has a roof sloping upward at 34.0 degrees above the horizontal on each side.

    A)If each side of the uniform roof weighs 1.10×10^4N , find the horizontal force that this roof exerts at the top of the wall, which tends to push out the walls.

    B)Which type of building would be more in danger of collapsing: one with tall walls or one with short walls? Explain

    2. Relevant equations

    3. The attempt at a solution
    I tried to break the forces into x and y components, x is horizontal so i thought that is the horizontal force.
    I also tried use sum of the torque equals zero, but i don't know how to set it up
    can someone give me some clues. thanks. It's due tomorrow!
  2. jcsd
  3. Apr 11, 2008 #2
    All I can think of is taller walls having higher centres of mass, therefore would topple more easily.
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