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Homework Help: Circular Motion of a roller coaster!

  1. Oct 31, 2011 #1
    A roller caoster track has a hill with a circular curve of radius 20m. Determine the greatest speed that the roller coaster can travel at the top of the curve and not leave contact with the track.
     
  2. jcsd
  3. Oct 31, 2011 #2
    Well what have you tried so far?
     
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