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Tensor moment of inertia -- why is there a "-" sign?

  1. Dec 10, 2014 #1
    why there is a negative sign in the tensor moment of inertia??
  2. jcsd
  3. Dec 10, 2014 #2


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    Usually, there are six negative signs. Did you have a particular one in mind?
  4. Dec 12, 2014 #3
    no,my question is that why there should be a negative sign in the tensor moment of inertia?
  5. Dec 12, 2014 #4

    Vanadium 50

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    As it was pointed out, there are several negative signs. Which one are you talking about?
  6. Dec 13, 2014 #5
    all of them
  7. Dec 13, 2014 #6
    Are you asking what it represents or in what conditions that you use it? I don't know why it is there either, just trying to help clarify the question.
  8. Dec 13, 2014 #7
    This question does not make a lot of sense. A better question would be: why is the moment of inertia tensor defined the way it is defined?
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