Don't slide

A small block \(B\) is supported by a platform connected at \(A\) to rod \(OA\). point \(A\) describes a circle in a vertical plane at a constant speed \(v_{A}\), The coefficient of friction between the block and the platform are \(\mu_{s}=\frac{1}{\sqrt{3}}\) and \(\mu_{k}=\frac{1}{\sqrt{5}}\). The maximum speed \(v_{A}\), for the block not to slide on the platform is in \(m/s\)

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