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Blocks A and B are connected by a non-stretchable mass-less rope and arranged with block A resting on a table and block B hanging off the edge of the table, as shown in the figure below. The rope connecting blocks A and B passes over a massless, frictionless pulley.

Block A has a mass of $m_A = 3\space kg$ and block B has a mass of $m_B = 2\space kg$. If block B falls with an acceleration of $2.0\space m/s^2$, what is the coefficient of kinetic friction between block A and the table?










$9.6\space N$

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