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Centrieptal accleration and the poles of the earth

  1. Dec 4, 2005 #1
    Why does centripetal acceleration effect your weight at say that equator but not at the poles? Does it effect but just to a small extent?
  2. jcsd
  3. Dec 5, 2005 #2


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    At the poles, you are participating in the circular motion around the axis of rotation of the Earth. When you are at the equation, you are in circular motion. Remember the equations concerning circular motion? Some force is needed to keep you in orbit. You can experience something similar when you are on a roller coaster (at the top of the loop).
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