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A block A has a mass m(1)=2 kg and is at...

A block A has a mass `m_(1)=2 kg` and is attached to a spring of spring consstant 50 N/m. Another block of mass 4 kg is pressed against A, so that the spring is compressed by a distance d. Then find the maximum value of d (in metre) for which on release of B. the block A does no lose contact from wall. (Friction coefficient `mu=0.5`).

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