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In the figure shown masses of the blocks...

In the figure shown masses of the blocks A, B and C are 6kg, 2kg and 1kg respectively. Mass of the spring is negligibly small and its stiffness is 1000 N//m. The coefficient of friction between the block A and the table is `mu =0.8`. Initially block C is held such that spring is in relaxed position. The block is released from rest. Find `(g=10 m//s^(2))`.

(a) the maximum distance moved by the block `C`.
(b) the acceleration of each block, when elongation in the spring is maximum.

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