1. The problem statement, all variables and given/known data Now, I've learned that the time period of a spring mass system having spring constant k and mass m is 2 [tex]\pi[/tex] (m/k)^1/2. What is actually the angular frequency of a vertical spring mass system. It is executing one-dimensional motion, how does it have angular frequency? And..don't we call it angular velocity rather than angular frequency? 2. Relevant equations T = 2 [tex]\pi[/tex] (m/k)^1/2 3. The attempt at a solution Checked a few books, none of them really explained it.