1. The problem statement, all variables and given/known data Determine the natural frequency of the system in the figure (attached). Assume the pulleys are frictionless and are of negligible mass. 2. Relevant equations k_eq=k_1+k_2 (springs connected in parallel) k_eq=(1/k_1)+(1/k_2) (springs connected in series) omega=sqrt(k/m) 3. The attempt at a solution I am stuck on figuring out if the springs are connected in parallel, or in series. I think it is in parallel because when the mass is placed there, both springs get displaced by the same amount. Once I figure out if it's parallel of series I can then easily find k_eq and treat the two springs as one. The mass will undergo undamped simple harmonic motion with a frequency of sqrt(k_eq/m). I am afraid that I am on the wrong track...to think that I can simply combine the springs into one? Thanks for the help, I really appreciate it.