| | Example of the classic normal mode system |
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| | counting degrees of freedom | |
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| | counting degrees of freedom | |
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| | Q: what is potential energy | |
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| | Example 3: double pendulum | Approximate Lagrangian | contains errors, see handout for correct version |
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| | Example 3: double pendulum | equation of motion | contains errors, see handout for correct version |
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