Physics

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When the three blocks in the figure below are released from rest, they accelerate with a magnitude of 0.370 m/s2. Block 1 has mass M, block 2 has 5M, and block 3 has 5M. What is the coefficient of kinetic friction between block 2 and the table?

block 1 is haging off the table on the left of block 2, attached by rope. block 3 is hanging off the table to the right of 2, attached by rope. Ignore friction of pullies and weight of rope.

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