3. Three blocks are connected by a "massless" string over a "frictionless" pulley as shown in the diagram. If Uk = 0.35 for all blocks, find (a) the acceleration of the system (3 marks) (b) the tension in the string between blocks 2 and 3 (3 marks) ma = 4 kg m, = 3 kg my = 17 kg 15 40

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