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Hernaner28
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Homework Statement
A rod of length L and mass M can rotate respect to an articulation fixed to the wall. The other extreme of the rod is attached to a spring of constant k. When the system is in equilibrium the rod keeps horizontal. Find the angular frequency for small oscilations respect to that position.
Homework Equations
The Attempt at a Solution
My idea is to get to the differential equation by using Newton or Energy equations but I need a boost to do this because I am not sure where the forces are pointing at. I know the articulation does a force but where does it point at? And the spring?
Any help will be really really appreciated!