A cylinder of radius \(r\) and mass \(m\) rests on two horizontal parallel corners of two platfo....

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A cylinder of radius \(r\) and mass \(m\) rests on two horizontal parallel corners of two platforms. Both the platforms are of the same height. Platform B is suddenly removed. Assume friction between the corner of the platform \(A\) and cylinder to be sufficient enough to prevent sliding. Determine angular acceleration of the cylinder immediately after the removal of the platform \(B\).
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