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A spring block system is placed on a rou...

A spring block system is placed on a rough horizontal floor. Force constant of the spring is k. The block is pulled to right to give the spring an elongation equal to `x_0` and then it is released. The block moves to left and stops at the position where the spring is relaxed. Calculate the maximum kinetic energy of the block during its motion.

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The correct Answer is:
`K_(max) =1/8 kx_(0)^(2)`
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