EDIT:

Can some1 help me solve this:

http://www.freeimagehosting.net/imag...4bbecc8847.png

Thanks in advance.

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- Jan 23rd 2011, 06:09 PMshadow85Moment of inertia of a square prism
EDIT:

Can some1 help me solve this:

http://www.freeimagehosting.net/imag...4bbecc8847.png

Thanks in advance. - Jan 23rd 2011, 07:50 PMpickslides
- Jan 23rd 2011, 08:01 PMshadow85
steps involved to working this out would be appreciated, so I can understand how it is done.

- Jan 23rd 2011, 08:31 PMshadow85
OK I have worked out part (a):

I = integral y^2 . dA

= integral y^2.a.dy

= a.integral y^2 .dy from -b/2 to b/2

=a. [y^3/3] from -b/2 to b/2

= a.b^2 / 12

can sum1 confirm this and try continue with part (b). Thanks.