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June 15th, 2019, 11:47 PM  #1 
Senior Member Joined: Aug 2014 From: India Posts: 420 Thanks: 1  Find the moment of inertia of the system about the zaxis.
A mass of 1 kg is placed at (1m,2m,0). Another mass of 2kg is placed at (3m,4m,0). Find the moment of inertia of the system about the zaxis.

June 16th, 2019, 06:13 AM  #2  
Math Team Joined: Jul 2011 From: Texas Posts: 2,982 Thanks: 1575  Quote:
in this case ... $\displaystyle I = \sum_{i=1}^2 m_1 (x^2+y^2)$  
June 16th, 2019, 11:57 PM  #3 
Senior Member Joined: Aug 2014 From: India Posts: 420 Thanks: 1 
What values of $\displaystyle x$ and $\displaystyle y$ should I substitute in $\displaystyle (x^2+y^2)$?

June 17th, 2019, 05:32 AM  #4  
Math Team Joined: Jul 2011 From: Texas Posts: 2,982 Thanks: 1575  Quote:
Quote:
 

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find, inertia, moment, system, zaxis 
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