I've been working on problems that deal with pendulums and I've noticed that a few of my answers require me to find the angular velocity, frequency, period of a pendulum. I managed to get the answer right every time, but there's a step that I didn't understand, namely converting angular acceleration to angular velocity by what seems to be using this relationship:(adsbygoogle = window.adsbygoogle || []).push({});

[itex]\alpha=\omega^2[/itex]

Where in the heck does this come from? The book kind of skips this step in the examples and doesn't prove it at all, even though it proves just about every other equation it mentions.

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# Angular acceleration in terms of angular velocity

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