The 0.5-kg mass shown in Figure P13.1 is attached to the frame with a spring of stiffness k = 500 N/m. Neglect the spring weight and any damping. The frame oscillates vertically with an amplitude of 4...

The 0.5-kg mass shown in Figure P13.1 is attached to the frame with a spring of stiffness k = 500 N/m. Neglect the spring weight and any damping. The frame oscillates vertically with an amplitude of 4 mm at a frequency of 3 Hz. Compute the steady-state amplitude of motion of the mass.