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Airplane on a string

  1. Mar 27, 2005 #1
    In our physics class the teacher has an airplane and a cow both powered by a simple motor, the cow flaps its wings while the plane just has a propeller at the back. However in both cases when the objects are attached to the ceiling by a string and turned on they only flying in a circular motion only one way (clockwise I think) And no matter what you do you can't make them spin the other way. Does anyone have a good physics explanation for this?
  2. jcsd
  3. Mar 27, 2005 #2
    Turn them around. :-D
  4. Mar 27, 2005 #3
    No thats the thing, they only fly one way and if you push them the other way they go back to the other direction. I think it has something to do with one wing being higher than the other?
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