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Floating Arm Catupult

  1. Mar 2, 2009 #1
    I saw a youtube video featuring a floating arm catupult, but I don't quite understand how it works. Could someone give an explanation to help me understand?
  2. jcsd
  3. Mar 4, 2009 #2
    deleted due to censorship
    Last edited: Mar 5, 2009
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