An aircraft undercarriage oleo can be simplified to a mass-spring damper system with a single degree of freedom as per figure Q1. The system is underdamped with a damped natural frequency of 1.2 Hz and the ratio between its amplitude of vibration in the first cycle and that after two cycles is 1:10, i.e., x3=- mass, m=2500 kg, determine: 10 If the system has a a) The damping ratio. b) The undamped natural frequency. c) The equivalent spring stiffness. d) The critical damping coefficient. e) The damping coefficient. wwwwww Figure Q1 - Aircraft undercarriage free body diagram.