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TheCapacitor
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Homework Statement
I was doing this experiment: http://practicalphysics.org/shm-cantilever.html
I'm interested in the derivation of the result ω^2 = Exy^3 / 4*M*L^3. I tried to think where it comes from.
Homework Equations
ω^2 = Exy^3 / 4*M*L^3
mg = KS where S is the delta in the length of C.M before and after Mass was put on the edge and K is constant which is equal to Eb^3*a/4L^3
The Attempt at a Solution
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Let's say theta is small so sin(theta) is approximately theta. I tried to make moment of forces equation with point of turning at the place of force N, but it really don't make any sense as we get thetamgL/2 + MgLtheta = 0.