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March 29, 2015

March 29, 2015

Posted by **Alex** on Friday, October 19, 2012 at 9:48am.

- Physics (Difficult) -
**drwls**, Friday, October 19, 2012 at 10:29amThe "wider face" is the pair of 66 mm x 1.7 m parallel faces.

First, get the moment of inertia about an axis passing through the centroid of that face. Call it Icm.

Then, use the parallel axis theorem, which is explained at

http://hyperphysics.phy-astr.gsu.edu/hbase/parax.html

- Physics (Difficult) -
**drwls**, Friday, October 19, 2012 at 10:33amFor the moment of inertia about an axis through the center of mass, see the "cuboid" formula at

http://en.wikipedia.org/wiki/List_of_moments_of_inertia

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