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## Homework Statement

3.) What is the moment of inertia of the object about an axis at the center of mass of the object? (Note: the center of mass can be calculated to be located at a point halfway between the center of the sphere and the left edge of the sphere.)

https://www.smartphysics.com/Content/smartPhysics/Media/Images/Mechanics/15/momentofinertia2new.png

mass of rod = 7.31kg

length of rod = 5.68m

radius of sphere = 1.42

mass of sphere = 36.55kg

1.) I about axis at left end of rod = 1960.4kg-m^2

2.) angular acceleration w/ 498N exerted perpendicular to center of rod = .72rad/s^2

## Homework Equations

I = 2/5mr^2, I = 1/12ml^2, I = Icm + Md^2 (?)

## The Attempt at a Solution

I've calculated the centre of mass, which ended up being about 6.4m, however, I am completely at a loss as to how I should approach the rest of the question. I'd really appreciate a bit of in depth help on this one! [/B]