Extracted text: 2. An empty elevated water tank is pulled by a steel cable by applying a 50 kN force. The tank is pulled horizontally by10cm. The cable is suddenly cut and the resulting free vibration is recorded. At the end of threecomplete cycles, the time is 3.0 s and the amplitude is 5 cm. Determine the damping ratio, natural period of undamped vibration, effective stiffness, effective weight, and damping coefficient for the given data,