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Two masses 7 kg and 12 kg are connected ...

Two masses 7 kg and 12 kg are connected at the two ends of a light inetensible string that goes over a frictionless pulley. Find the acceleration of the masses and the tension in the string when the masses are released.

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`T = 8 xx 10 = 8a, 12 xx 10 - T = 12a`
i.e., `a = 2 ms^(-2) , T = 96 N`
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