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Homework Help: Suspension bridge's tension!

  1. Apr 26, 2010 #1
    1. The problem statement, all variables and given/known data
    A small massless suspension bridge of length 15.0 m and mass is suspended by two cables as shown below. A truck of mass 2500 kg is parked on the bridge at a distance of 4.0 m from the left cable. What are the tensions in cable 1 and cable 2?


    2. Relevant equations



    3. The attempt at a solution
    I have started with the idea that the bridge is at equilibrium. But I don't know how to include the truck into the problem solving. Please help! Thanks!
     

    Attached Files:

  2. jcsd
  3. Apr 26, 2010 #2

    tiny-tim

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    Welcome to PF

    Hi forcesand! Welcome to PF! :smile:

    Use moments (of forces). :wink:
     
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