A classical mechanics problem by Ken Osako

Classical Mechanics Level 3

When the three blocks in the figure are released from rest, they accelerate with a magnitude of \(1 \text{ m/s}^2\). Block 1 has mass \(M\), block 2 has \(2M\), and block 3 has \(2M\). What is the coefficient of kinetic friction between block 2 and the table?

Take \(g=9.8 \text{ m/s} ^2\).

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