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Conservation of angular momentum (view source)

Revision as of 03:34, November 18, 2007

25 bytes added ,  03:34, November 18, 2007
better still
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A [[moment of inertia]] is additive, defined as follows:
 
A [[moment of inertia]] is additive, defined as follows:
   −
:<math>I \ \stackrel{\mathrm{def}}{=}\  m r^2\,\!</math>
+
::<math>I \ \stackrel{\mathrm{def}}{=}\  \sum_{i=1}^{N} {m_{i} r_{i}^2}\,\!</math>
−
where
+
where ''m'' is the mass at each (perpendicular) distance ''r'' from the axis of rotation.
−
:''m'' is the mass at each (perpendicular) distance ''r'' from the axis of rotation.
   
[[category:physics]]
 
[[category:physics]]
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