Two blocks of masses \(m_1\) and \(m_2\) are placed in contact with each other on a horizontal p....

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Two blocks of masses \(m_1\) and \(m_2\) are placed in contact with each other on a horizontal platform as shown in figure. The coefficient of friction between \(m_1\) and platform is \(2 \mu\) and that between block \(m_2\) and platform is \(\mu\). The platform moves with an acceleration \(a\). The normal reaction between the block is
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