Sanjeev C Achar

3 Questions 3 Answers 0 Followers

Questions related from Sanjeev C Achar

While modelling mechanical control systems, let's say a simple spring-mass system, why do we take the state variables as position and velocity?

In Newtonian mechanics, if x be the position and v be the velocity, then we may write dx/dt = v. So why would we need 2 state variables to fully describe the system? Isn't x alone sufficient?...

22 September 2021 5,578 8 View

What is the reason for the variation of absorption in a linear fashion, and that of transmittance in a non linear fashion?

Why does the absorbance vary in a linear fashion, whereas the transmittance varies in an exponential fashion? Can this be explained mathematically/intuitively or are these results based on...

01 January 1970 7,246 1 View

Frequency response, Laplace transforms, control systems

In Laplace transform, we defined 's' to be a complex number and wrote it as s= sigma+jw. But in frequency response, why do we zero-out the real part(sigma)? Few sites on the internet told it to...

01 January 1970 697 3 View