First slide
Simple hormonic motion
Question

A uniform rod of length l is suspended from any point P. It is then made to undergo small oscillations. If P is the

Easy
Solution

T=2πImgl. Here, l s distance of point P from centre of mass.
When P is the centre, l = 0. Therefore, T = , i.e. rod will not oscillate.

When P is end point, I=ml23

                               T=2πml23mgl=2πl3g

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