Question
Determine the moment of inertia for the shaded area about the $y$ axis.
Step 1
The element is a rectangle with thickness $dy$ and length $x$. Its area is $dA = x \cdot dy$. The distance of the element from the y-axis is $x$, so the moment of inertia of the element about the y-axis is $dI = x^2 \cdot dA$. Show more…
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