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1 kg block collides with a horizontal ma...

1 kg block collides with a horizontal massless spring of force constant `2 N//m`. The block compresses the spring by 4m. If the coefficient of kinetic friction between the block and the· surface is 0.25, what was the speed of the block at the instant of collision? (take `g = 10 m//s^(2)`)

Text Solution

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The correct Answer is:
`7.2 ms^(-1)`
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