Forced oscillations and resonance

IB Physics: Forced oscillations and resonance

For years the Tocama narrows bridge collapse has been used as an example of resonance, however it appears that this isn"t resonance but some sort of positive feedback. Is it OK to sometimes tell "white lies" to make a point? See video below.Adding a term to the equation for damped harmonic motion gives the result that if the driving frequency equals the natural frequency the amplitude will be high.If you have some sort...

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