In the arrangement shown, the 2 kg block...

In the arrangement shown, the 2 kg block is held to keep the system at rest. The string and pulley are ideal. When the 2kg block is set free, by what amount the tension in the string changes? `[g=10m//s^(2)]`

(a)Increase of 12 N

(b)Decrease of 12 N

(c)Increase of 18 N

(d)Decrease of 18 N

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