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4)Consider the dynamical system shown in the following figure.Suppose the spring stiffness a) 1N/m,the mass is 9 kg,and the viscous damping coefficient is 10

4)Consider the dynamical system shown in the following figure.Suppose the spring stiffness a) 1N/m,the mass is 9 kg,and the viscous damping coefficient is 10 N.s/m.Suppose there is a step input force F(t) =2.u(t). Draw the FBD of the mass b) Find motion of equation of the system c) Determine the natural frequency, the damping ratio and the damped naturel frequency

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