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The figure shown blocks A and B are mass 2 kg and 8 kg and they are connected through strings to
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The figure shown blocks A and B are mass 2 kg and 8 kg and they are connected through strings to a spring connected to ground. The blocks are in equilbrium. `(g=10m//s^(2))` Now the block A is pulled downwards by a force gradually increasing to 20 N. The new elongation of spring is ,-
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