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In the system shown in figure, the two s...

In the system shown in figure, the two springs `S_(1) "and" S_(2)` have force constant k each. Pulley, springs and strings are all massless. Initially, the system is in equilibrium with spring `S_(1)` stretched and `S_(2)` relaxed. The end A of the string is pulled down slowly through a distance L. By what distance does the block of mass M move?

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The correct Answer is:
`(2L)/(5)`
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