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--- urp:physrot [2021-11-05]
nerf_herder created
+++ urp:physrot [2021-11-05]
nerf_herder
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 ====Rotation and Oscillation====
+====Spring and Lever====
+**Hooke's law** for springs: F=-kx, k=spring constant, x = displacement
+**Fulcrum**: t = r * f  (torque = radius * force)
+just add the torques for multiple objects on one side of a fulcrum
+====SHM - Simple Harmonic Motion====
+F = ma, ∴ ma = -kx
+angular frequency ω = √(k/m)
+period of oscillation T = 2π √(m/k)  (horizontal or vertical springs)
+In a vertical spring, the weight Mg of the body produces an initial elongation to equilibrium, such that Mg − kyₒ = 0.
+If y is the displacement from this equilibrium position the total restoring force will be Mg − k(yₒ + y) = −ky
+Back to [[Physics]] page or [[00_start|Start]] page.

The Ungerecht Family Tree