The perpendicular axis theorem states that
the moment of inertia of a planar lamina (2-dimensional object) about an axis perpendicular to its plane and passing through the origin of two mutually perpendicular axes, lying in the plane of the object, is equal to the sum of the moments of inertia of the lamina about axes lying in the plane of the object.
Assuming three mutually perpendicular axes x, y, z so that the xy plane is coinciding with the plane of the object as shown in the figure. Let I_x, I_y, and I_z be the moments of inertia about x, y, and z-axis respectively.
Then from the perpendicular axis theorem
I_{z}=I_{x}+I_{y}
If an object has rotational symmetry such that I_{x} and I_{y} are equal then the perpendicular axes theorem provides the useful relationship:
I_{z}=2I_{x}=2I_{y}
I’m really enjoying the design and layout of your website. It’s a very easy on the eyes which makes it much more enjoyable for me to come here and visit more often. Did you hire out a designer to create your theme? Outstanding work!
Hi there! Someone in my Myspace group shared this website with us so I came to check it out. I’m definitely enjoying the information. I’m bookmarking and will be tweeting this to my followers! Terrific blog and superb style and design.
Thank you so much for sharing this wonderful post with us.