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Spinning top

  1. Feb 27, 2008 #1
    [SOLVED] spinning top

    1. The problem statement, all variables and given/known data
    Please confirm the following:
    1) If a the tip of a top is perfectly sharp and everything else about the top is perfect and there is no air resistance, then you can put the top to sleep forever i.e. you can make it spin around the vertical axis forever.
    2) With the same ideal conditions as in 1), you can make the top precess forever about the vertical.

    2. Relevant equations

    3. The attempt at a solution
  2. jcsd
  3. Feb 28, 2008 #2


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    Both are correct. There is no mechanism for energy loss with no friction or air resistance.
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