A system is represented by the following transfer function G

A system is represented by the following transfer function G(s) = Y(s)/U(s)= 84/(3s^2 + 21s + 36)(s^2 + 2s +9) The input is a step function u(t) = 4U(t). Determine the steady-state output y(infinity). Determine the settling time to reach steady state.

Solution

From the above given data staedy state output can be calculated in th following manner

A steady state output = 38

B) settling time will be 85 sec answer