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A revision question that i have been stuck on, hope you can help

  1. Nov 11, 2009 #1
    Attached is a question from my book, I know that the answer is 112KN but can't work out the method for getting there. Hope you can help, James

    Attached Files:

  2. jcsd
  3. Nov 11, 2009 #2


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    You need to have some sort of information on the areas.
  4. Nov 11, 2009 #3


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    Which is funny because he has lengths which aside from buckling don't seem to serve any purpose.
  5. Nov 22, 2009 #4
    You didn't give the areas, but by my calculations, it looks like the ratio of the areas of the two cylinders is 7/16. Is that right?

    Let's see what you've tried so far and maybe we can spot your error.
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