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

AI Thread Summary
The discussion centers on the presence of negative signs in the tensor moment of inertia, with participants questioning their significance and the conditions under which they are used. It is noted that there are typically six negative signs associated with the tensor. Clarification is sought on whether the inquiry pertains to the representation of these signs or their application. The conversation suggests that a more precise question would focus on the definition of the moment of inertia tensor itself. Understanding the definition and context of these negative signs is crucial for grasping their role in physics.
taba94
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why there is a negative sign in the tensor moment of inertia??
 
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Usually, there are six negative signs. Did you have a particular one in mind?
 
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no,my question is that why there should be a negative sign in the tensor moment of inertia?
 
As it was pointed out, there are several negative signs. Which one are you talking about?
 
all of them
 
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.
 
taba94 said:
why there is a negative sign in the tensor moment of inertia??

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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