Second Moment of Inertia of a Rectangle

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theBEAST
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Homework Statement


Find the second moment of inertia of a rectangle.

The Attempt at a Solution


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Anyone know why my answer is 4 times too big?
 
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Your limits of integration imply that your axis of references is the x-axis (which is correct by the way).

The "correct" answer you want is to get Ix about the centroidal axis. In which case your limits would be different.