Using the Laplace transform and the inverse transform, obtain the response of the system (in the time domain) to the unit step in case of zero initial conditions: y(0)=0, \dot{y}(0)=0,

\text { and } u(t)=1 O y(t)=2-2 e^{-t}-2 t e^{-t} O y(t)=1-2 e^{-t}-2 t e^{-t} O y(t)=1-1 e^{-t}-1 t e^{-t}