Q1. MATLAB/SIMULINK to simulate step responses of second-order systems 5 seconds find the poles. a) First, write a Simulink to show each step response and show them, respectively. b) Second, write a Simulink and show four step responses together in one figure. c) Using workspace simout block, send the responses in simout variable to plot a figure writing a MATLAB CODE. You can refer to the way to plot this figure explained in the lecture and the code posted on Blackboard. Find poles for each response using a proper MATLAB command. Q2. Write MATLAB/SIMULINK to find a step response for the mass-damper spring system of the Lab using the transfer function obtained from Homework#4 a) First, write a Simulink show four step responses together in one figure using ‘scope block’. [15pts] b) Second, write a Simulink show four step responses together in one figure and send the responses in simout variable to plot a figure writing a MATLAB CODE.