Q

# Which of the following functions of time represent (a) simple harmonic, (b) periodic but not simple harmonic (c) 3 cos (π/4 - 2 ω t)

Q. 14.4 (c) Which of the following functions of time represent (a) simple harmonic, (b) periodic but not simple harmonic, and (c) non-periodic motion? Give period for each case of periodic motion ($\omega$ is any positive constant):

(c) $\inline 3\; cos(\pi /4-2\omega t)$

The function represents SHM with a period of  $\frac{\pi }{\omega }$