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three blocks weighing 20 lb, 10 lb and 5 lb are connected by light strings taht pass over a frictionless pulleys as shown in the figure below. the acceleration of the system is 5ft/s^2 to the left, and the surfaces are rough. find (a) the tension in each string and (b) the coefficient of kinetic friction between the blocks and the surfaces.
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@sauravshakya
@K0GA @hartnn
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