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Two block of same mass'm' are joined wit...

Two block of same mass'm' are joined with an ideal spring of spring constant k and sept on a rough surface as shown in figure. The spring is initially unstretched and coefficient of friction between the blocks and horizontal surface is `mu` and `2 mu` respectively. What should be the maximum speed of block 'A' such that the block 'B' does not move ?

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The correct Answer is:
`00002.82`
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