The 5-lb box B is dropped from rest 5 ft from the top of the 10-lb plate P, which is supported by the spring having a stiffness of k = 30 lb/ft. If e = 0.6 between the box and plate, determine the maximum compression imparted to the spring. Neglect the mass of the spring.

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B P www 5 ft k = 30 lb/ft