A spring is stretched 6 in by a mass that weighs 8 lb. The mass is attached to a dashpot mechanism that has a damping constant of 14 lb⋅s/ft14 lb·s/ft and is acted on by an external force of 4 cos(2t) lb. If the given mass is replaced by a mass m, determine the value of m for which the amplitude of the steady-state response is maximum.

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A: Answer:----.                 Date:----18/10/2021

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