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Two blocks m(1) and m(2) of 1 kg and 2 k...

Two blocks `m_(1)` and `m_(2)` of 1 kg and 2 kg are connected by a spring of spring constant K on a rough horizontal surface of coefficient of friction 0.4. A horizontal force F is applid on `m_(1)` so that it could just move block mass `m_(2)`. The value of F

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