Exam 2
Review & Practice

Start with a worked example. Try the next question yourself.
Reveal one step at a time to check how and why the method works.

6 topics18 new exercisesFormulas + hints + worked solutions

First-order responses

Identify the input transform, find Y(s), and recover a simple response.

Question 1 of 18Choose one

For G(s) = 5/(s + 4), a unit impulse is applied from zero initial conditions. Which output transform is correct?

Y(s) = G(s)R(s)

Unit impulse: δ(t) ↔ 1

Unit step: u(t) ↔ 1/s

Choose an answer.AY(s) = 5/[s(s + 4)]BY(s) = 5/(s + 4)CY(s) = 1/(s + 4)DY(s) = 5s/(s + 4)

Need a starting point?

Identify R(s) before multiplying. Does a unit impulse introduce a factor 1/s?