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Homework Help: Mechanics of material problem.

  1. Mar 27, 2013 #1
    So basically I'm not sure of the solution and just want someone to tell me if what I did is correct. It's important I have an upcoming exam. Thank you.
  2. jcsd
  3. Mar 28, 2013 #2
    Your shortening of bar B-C looks ok.
    Your shortening of bar A-B should contain two terms: one expression for the un-drilled portion and one expression for the drilled portion. The latter term will contain your unknown dimension.
  4. Mar 29, 2013 #3
    thank you a lot !
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