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Question: 1 the equation of motion of a 1 dof spring...

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1) The equation of motion of a 1 DoF spring- mass - damper system is given as follows: 2.5x+o. Icx + 20o0x o. The mass of the system is displaced 30 mm and released, how many cycles will be executed before the amplitude of displacement is reduced to 3 mm when the damping coefficient is 150 N.s/m. Determine the critical damping coefficient of the system.

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