A rotor has a mass of 12 kg and mounted midway on a 24 mm diameter horizontal shaft supported at the ends by two bearings. The bearings are 1 m apart. The shaft rotates at 2400 rpm. If the centre of mass of the rotor is 0.11 mm away from the geometric centre of the rotor due to certain manufacturing defect, find the amplitude of the steady-state vibration and the dynamic force transmitted to the bearing.