I was working out a conceptual question that asks: if a disk and a hoop of equal mass and radius start from the top of a ramp, are realeased at the same time, and roll without slipping, which one reaches the bottom of the ramp first?(adsbygoogle = window.adsbygoogle || []).push({});

Disk: I = 1/2(m)(r^2)

Hoop: I = mr^2

So the inertia of the disk ends up being lower. Lower inertia means the disk moves faster, right?

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# Homework Help: Lower inertia means it moves faster, right?

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