24sir I had already solved θ...............it was for others...............
i cant get frequency...............plzzzz help
An L shaped bar of mass m is pivoted about one end so that it can rotate freely in vertical plane.
Calculate θ0 at equilibrium
If it is slightly displaced,find frequency of oscillation
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7 Answers
62θ0=tan-11/3
this is because the center of mass will be 1/4 distance from the lines AB and OA each.
The other part can be solved by energy balance :)
2462displacing ti slightly will give
Energy: mgl/2 cos(θ+dθ) + mglcos(θ+dθ) + mgl sin(θ+dθ) + 1/2Iω2
I is given by (m/2)l2/3+ m/2l2/12 + 5/4ml2
Now I think you can solve this one :)
3nishant sir or euraka pls confirm if my soln. is right!!!!!!!!!!!!