2026-08-20 14:32:36: SHM

2026-08-20 14:32:38 -04:00
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+[[Oscillations]]
+It's when a restoring force is proportional to the displacement from equilibrium.
+
+# Summary
+* $F_x=-k\Delta x$
+* Acceleration always points opposite to displacement.
+* Equilibrium is where net force is zero.
+* Maximum displacement is amplitude.
+* Velocity is maximum at equilibrium.
+* Pendulum acts as SHM at low angles because restoring force is proportional to angle.
+