(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Two disks have the same radius R and the same mass M, but one of the disks is twice as thick as the other. Disk A has thickness t, and disk B has thickness 2t. How does the moment-of-inertia of disk A about an axis through the center compare to that of disk B? Specifically, what is the ratio I_A / I_B ?

2. Relevant equations

above

3. The attempt at a solution

The moment of inertia of a disk is I=1/2MR^2 but I don't understand where the thickness would be. If the thickness has no significance in the equation then would ratio be 1:1

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# Homework Help: Ratio of inertia

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