12 lines
389 B
Markdown
12 lines
389 B
Markdown
[[Oscillations]]
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It's when a restoring force is proportional to the displacement from equilibrium.
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# Summary
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* $F_x=-k\Delta x$
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* Acceleration always points opposite to displacement.
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* Equilibrium is where net force is zero.
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* Maximum displacement is amplitude.
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* Velocity is maximum at equilibrium.
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* Pendulum acts as SHM at low angles because restoring force is proportional to angle.
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