Re: Moment of Inertia

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Posted by Nate Woods on 3:36 pm January 17, 19104:

In Reply to: Re: Moment of Inertia posted by praveen on January 04, 19104 at 01:31 am:

I hope this helps. In short moment of inertia equation is an equation for mass distribution about a plane or line.
In problems that deal with bending the moment of inertia is the mass distribution about the neutral axis (the part experiencing neither compression or tension). Example...take a popsicle stick. Snap it in half...it is pretty easy. Take 10 popsicle sticks stecked together...it is much more difficult to break. What you did by was increase the momement of inertia.
In problems that involve rotation the moment of inertia is just the distribution of mass around the axis. Example...take a volleyball and a bowling ball. to spin a volleyball(sitting on the ground) is easy...the bowling ball is much harder to spin because it has a larger moment of inertia.

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Re: Moment of Inertia murali -- 07:31 am January 28, 19104 (0)

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Message:	: I hope this helps. In short moment of inertia equation is an equation for mass distribution about a plane or line. : In problems that deal with bending the moment of inertia is the mass distribution about the neutral axis (the part experiencing neither compression or tension). Example...take a popsicle stick. Snap it in half...it is pretty easy. Take 10 popsicle sticks stecked together...it is much more difficult to break. What you did by was increase the momement of inertia. : In problems that involve rotation the moment of inertia is just the distribution of mass around the axis. Example...take a volleyball and a bowling ball. to spin a volleyball(sitting on the ground) is easy...the bowling ball is much harder to spin because it has a larger moment of inertia.
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