How do you do question 1 and 2, I already figure the. out and would like to know more about it.

a 10sta Exercise 1: Given the transfer function H(s) = for a Unit step response evaluate the time constant, settling time and rise time for the following values of a: 1, 10, and 20 by hand and by MATLAB. Also, plot the poles and zeros and explain the effect of poles and zeros. 1 Exercise 2: For a system with transfer function T(s) = 52 +85+16 Calculate damping ratio and natural frequency of the system by hand when a unit-step response is applied. Then find the damping ratio and natural frequency using MATLAB. a 10sta Exercise 1: Given the transfer function H(s) = for a Unit step response evaluate the time constant, settling time and rise time for the following values of a: 1, 10, and 20 by hand and by MATLAB. Also, plot the poles and zeros and explain the effect of poles and zeros. 1 Exercise 2: For a system with transfer function T(s) = 52 +85+16 Calculate damping ratio and natural frequency of the system by hand when a unit-step response is applied. Then find the damping ratio and natural frequency using MATLAB