A human responds to a visual cue with a physical response. The transfer function that relates the output physical response, P(s), to the input visual command, V(s), is (s +0.5) G(s) V(s) (s + 2)(s +5) a) Evaluate the output response for a unit step input using the Laplace transform. b) Represent the transfer function in state-space. c) Using MATLAB (ss and step commands) simulate the system and obtain a plot of the step response.