Question

What is the impulse response of a system whose transfer function is that of ramp function delayed by 7 units in time?

(a) r(t-7)

(b) r(t+7)

(c) r(t-3.5)

(d) Cannot be determined

I had been asked this question in an interview for internship.

Query is from Impulse Response topic in chapter Control System Applications of MATLAB

Answer 1

Right option is (a) r(t-7)

To explain I would say: The impulse response is simply the inverse laplace transform of the transfer function. According to the given nature of the transfer function, the impulse response is then given by option r(t-7) only.