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- Thread starter David Fosco
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BvU

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In a physics curriculum the harmonic oscillator is a

The more rigorous approach you hint at is only relevant for detailed analysis of actual pendulums (pendula?), a much more restricted area.

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Mister T

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Every college-level introductory physics textbook will make it clear that the statement is an approximation used when the amplitude is small compared to the pendulum's length. Do a google search for brachistochrone, that's the shape, not the arc of a circle, that gives you the property described by your teacher. As long as the arc length is small compared to the radius, the two curves match up very closely.My question is why don't they teach this

It's quite possible your teacher didn't know this and didn't learn it when he had the chance.

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Borek

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Ibix

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End rant.

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BvU

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