Question: 5 . 2 2 A spring - mass system with m = 2 0 k g and k = 8 0 0 0 N m

5.22 A spring-mass system with m=20kg and k=8000Nm vibrates horizontally on a surface with coefficient of friction =0.2. When excited harmonically at 5 Hz the steady-state displacement of the mass is 10 cm . Determine the equivalent vis cous damping.
5 . 2 2 A spring - mass system with m = 2 0 k g

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