Cameroon GCE A-Level Pure Math with Mechanics

Practice session

A block of mass $M = 4\text{ kg}$ rests on a rough horizontal table with coefficient of friction $\mu = 0.25$. It is connected by a light string over a smooth pulley at the edge of the table to a hanging mass $m = 2\text{ kg}$. Taking $g = 10\text{ m/s}^2$, find the common acceleration of the blocks.

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