A 0.6-lb collar A is released from rest, slides down a frictionless rod, and strikes a 1.8-lb collar B which is at rest and supported by a spring of constant 34 lb/ft. Knowing that the coefficient of restitution between the two collars is 0.9, determine

(a) The maximum distance collar A moves up the rod after impact,

(b) The maximum distance collar B moves down the rod after impact.

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k = 34 lb/ft B 30° 1816 36 ft 0.6 lb