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Question: 854 the block of mass m 45 kg is suspended...

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8/54 The block of mass m 45 kg is suspended by two springs each of stiffness k3 kN/m and is acted upon by the force F-350 cos 15t N where t is the time in seconds. Determine the amplitude X of the steady-state motion if the viscous damping coeffi- cient c is (a) 0 and (b) 900 N-s/m. Compare these amplitudes to the static spring deflection 6st-

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