1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Question on Equilibrium in a roof truss

  1. Nov 7, 2003 #1
    The diagram for this quesion is at http://www.drewtemp.com/helios/physics.gif

    The first thing that i did was that i made the free body diagram. From my knowledge i would say that AB and BC are in compression and AC is in tension (i think that is correct). Now the question asked to take moments at B for finding the force in AC whether it be tension or compression, however when i do that it seems like the forces just cancel off each other, and that is where i am stuck

    Here is the link for my free body diagram: http://www.drewtemp.com/helios/physics_freebody.gif

    1. What i want to find is which members are in tension and compression (AB, BC, AC)?

    2. What is the force at AC? The weight of AC is negligible.

    3. What force from the left (the wind) is required to make the truss pivot at C?
    Last edited: Nov 7, 2003
  2. jcsd
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Can you help with the solution or looking for help too?
Draft saved Draft deleted