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Two small blocks of mass mA=30 kg & mB =...

Two small blocks of mass `m_A`=30 kg & `m_B` =15 kg are connected with spring & kept on the wedge which is rotating about given axis as shown in figure. If blocks B remain in rest then minimum value of coefficient of friction between block A & wedge is `mu_0`, then the value of `mu_0^2` is :

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