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A spring of free length 15 cm is connect...

A spring of free length `15` cm is connected to the two masses as shown in the figure `-4.149` and compressed `5` cm. The system is released on a smooth horizonal surface. Find the speed of each block when the spring is again at its free length. The force constant for spring is `2100Nm^(1)`

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The correct Answer is:
`"["1.575m//s,1.05m//s"]"`
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