The 20-kg variable-speed motorized unit is restrained in the horizontal direction by two springs, each of which

Question:

The 20-kg variable-speed motorized unit is restrained in the horizontal direction by two springs, each of which has a stiffness of 2.1 kN/m. Each of the two dashpots has a viscous damping coefficient c = 58 N∙s/m. n what ranges of speeds N can the motor be run for which the magnification factor M will not exceed 2?