An industrial sewing machine (having mass m) is mounted on springs (with stiffness k) and dampers (with damping coefficient b) to decrease the force transmitted to the floor. the input force acting on the sewing machine during operation is denoted by f(t), while the vertical motion of the machine is denoted by y(t). the sewing machine mass is 150 kg. suitable spring and damper values must be selected so that the vertical motion of the machine is sufficiently small