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Change in span length

  1. Feb 14, 2010 #1
    1. The problem statement, all variables and given/known dataSuppose the 1.3 km main span of steel for the Golden Gate Bridge had no expansion joints. How much longer would it be for an increase in temperature of 20°C?



    2. Relevant equations
    change in Length=Length*coefficient linear expansion*change in temp.
    =1300*(11*10^-6/20)*20




    3. The attempt at a solution
    incorrect:
    .0143 meters
    .2625
    .1575
    correct answer =.286 meters
     
    Last edited: Feb 14, 2010
  2. jcsd
  3. Feb 14, 2010 #2

    PhanthomJay

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    your formula is correct, so why did you divide by 20??
     
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