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Not sure on this one

  1. Mar 20, 2013 #1
    1. The problem statement, all variables and given/known data
    Two identical balloons are of the same volume are pumped up with air to more than atmospheric pressure and suspended on the two ends of a stick so the stick is horizontally balanced. If one of the balloons is punctured is the balance of the stick upset?

    2. Relevant equations



    3. The attempt at a solution
    I say yes. But I don't know why.
     
  2. jcsd
  3. Mar 20, 2013 #2

    Dick

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    If the contents of the two balloons have more than atmospheric pressure then the balloons are heavier than air. So?
     
  4. Mar 20, 2013 #3
    So, if the balloon on the left is popped then the stick will sag towards the right, or the direction of the balloon that is left. Is it that simple? I thought there might be something I was missing?
     
  5. Mar 20, 2013 #4

    Dick

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    Yes, both balloons are pulling down on the stick. If you pop one, it will stop pulling down. Simple as that.
     
  6. Mar 20, 2013 #5
    Thanks.
     
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