1. For a second-order instrument with a sensitivity of 0.35 V/(m/s), a = 10.5 F, a = 1 and a = 0.2143 H estimate the natural frequency, damping coefficient, and ringing frequency of the instrument. Plot the input and output signals for an input signal of F(t) = (4.4 m/s) U(t) in Excel. Determine the 90% rise time and settling time from the plot. Label the transient and steady parts of the curve.