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Question: shows a massdamper system no stiffness see problem 23 displacement...

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7.19 Figure P7.19 shows a mass-damper system (no stiffness, see Problem 2.3). Displacement x is measured from an at-rest position where the damper is at the neutral position. The external force fa t) is a short- duration pulse function: fa (t) 3 5N for 0 Sts 0.02 s, and fa (t) 0 for t 0.02 s. Therefore, force fa t) can be modeled as an ideal impulsive input with the appropriate strength or weight. The system parameters are mass m 30.5 kg and viscous friction coefficient b 3 N-s/m and the system is initially at rest. f (t) a. Determine the impulse response with velocity v t) i(t as the dynamic variable. b. Using the solution in part (a) compute the position responsext to the impulsive input force.

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