question 3 A 14 kg mass is suspended by a spring of stifness 30 kN/mn with auscous danging est of 1000 Ns/m. The mass is initially at rest and in equilibrium system is excited by harmonic force of value 80N at 3 Hz aclulate : 1) Damping ratio The a) Steady state amplitude >) phase (rad).

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Free Damped Vibrations

Free vibration is a type of vibration in which the external force is removed after giving the initial displacement to a body/system. In other words, in this type of vibration, force is applied at the initial displacement of the system, and after the initial displacement, force is removed, and the system vibrates at the natural frequency.