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A uniform bar with mass m lies symmetric...

A uniform bar with mass m lies symmetrically across two rapidly rotating fixed rollers. A and B with distance 'l' between the bars centre of mass and each roller. The rollers whose direction of rotation are shown in figure slip against the bar with coefficient of friction `mu`. Suppose the bar is displaced horizontally by a small distance 'x' and then released, find the time period of oscillation.

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`2pi sqrt((l)/(mu g))`
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