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A block of mass 20 kg on a horizontal surface where uk = 0.4is pushed against...

A block of mass 20 kg on a horizontal surface where uk = 0.4is pushed against an initially relaxed spring that has a force constant k = 100 N/m, compressing it 1.50 meters. It is then released, what is the maximum velocity of the mass? Hint the maximum velocity occurs before the relaxed spring equilibrium point.

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