1.

A_vehicle_suspension_system_consists_of_a_spring_and_a_damper._The_stiffness_of_the_spring_is_3.6_kN/m_and_the_damping_constant_of_the_damper_is_400_Ns/m._If_the_mass_is_50_kg,_then_the_damping_factor_(d_)_and_damped_natural_frequency_(fn),_respectively,_are

A. 0.471 and 1.19 Hz
B. 0.471 and 7.48 Hz
C. 0.666 and 1.35 Hz
D. 0.666 and 8.50 Hz
Answer» B. 0.471 and 7.48 Hz


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