I think I'm starting to abuse this forum. Anyways, it seems that I haven't grasped the concept of angular acceleration yet since I'm having trouble solving this problem:(adsbygoogle = window.adsbygoogle || []).push({});

Suppose I have a disc laying on the x-y plane with center at the origin. Suppose the disc is rotating about the z-axis with angular velocity [itex]\vec{w}[/itex] and about the y-axis with angular velocity [itex]\vec{u}[/itex]. What is the angular acceleration of the disc?

The resultant angular velocity of this disc is [itex]\vec{w} + \vec{u}[/itex] right? I guess since this resultant angular velocity is changing direction as the disc spins, it gives rise to an angular acceleration. I can't really picture the angular acceleration though (i.e. where is it at?).

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# Homework Help: Angular Acceleration of a Disc

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