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Re: Don't mean to be pushy, but you are mistaken (archive)

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Posted by Adrian on November 23, 2000 at 02:33:08:

In Reply to: Don't mean to be pushy, but you are mistaken!!! posted by Stan on November 21, 2000 at 08:21:29:


<>

!!!!???!!!

Maybe you are looking up the wrong formula or misunderstand something. I have roughly 10-12 Physics books and they all agree with each other. What book are you using?

Additionally here are 5 URLs showing the Squared factor and NOT the fourth power. Try Google for many many other citations and examples.

http://people.clemson.edu/~btoy/tech/tech4/tech4.htm

http://physics.njit.edu/classes/physlab/laboratory111/lab118/lab118.htm

http://www.colorado.edu/physics/phys2010/phys2010_sm99/NOTES/Lecture13.html

http://www.stmaryscollege.com/intranet/werth/torque.html

http://www.dac.neu.edu/physics/a.cromer/Physics1192/Dynamics.html

The first one shows an attempt to derive the MOi for the various shapes comprising a particular wheel. Hope this helps.

Stan

Stan, sorry old chap I will send you the calculation you are right for a rod but do the integral of the moment of innertia for a circle ie sum of M x (r squared) for the limits of a circle and it will all make sense, I'll prove it when I get back from work - Must dash I have a final interview for a job - Fortunately not involving rotational mass calculations !!!





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