1. Nov 12, 2011 #1

   Duane

   

   What is the physical meaning of each term in the parallel-axis theorem?
   
   
   I=I com +Mh^2

    

   Duane, Nov 12, 2011
2. 
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3. Nov 12, 2011 #2

   Doc Al

   

   Staff: Mentor

   Not sure what you mean by 'physical' meaning, but:
   I = moment of inertia about some axis a distance 'h' from the center of mass
   Icom = moment of inertia about some axis (parallel to the other) passing through the center of mass
   M = mass of object
   h = distance between those two parallel axes
   
   You can think of it as the sum of the moment of inertia about the center of mass and the moment of inertia of the total mass (considered as a point mass) about the axis in question.

    

   Doc Al, Nov 12, 2011
4. Nov 12, 2011 #3

   Andrew Mason

   

   Science Advisor

   Homework Helper

   Icom is the moment of inertia of an object about an axis through the centre of mass. I is the moment of inertia of the object about an axis that is parallel to the axis through the centre of mass (com) and separated from it by a distance h. M is the mass of the object.
   
   AM

    

   Andrew Mason, Nov 12, 2011
5. Nov 12, 2011 #4

   Duane

   

   Thanks, that helped a lot!

    

   Duane, Nov 12, 2011

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