1. The problem statement, all variables and given/known data 2. Relevant equations ΣF , ω=√(k/m), f=w/(2pi) 3. The attempt at a solution I figured since the only forces acting on the block is the Spring force and a normal force in the downward position. Not a hundred percent sure of this though. For Disc: ΣFy= Fn - Fg - fs (static) = ma = 0 For Spring: ΣFy= fs-Fs (Spring) - Fn = ma = 0 -> fs-Fs=Fn Equating both Spring and Disc: fs-Fs-Fg-fs = 0 --> ky = mg k= mg / y= (.002kg)(9.8m/s^2) / (.08m) = .245 N/m w= sqrt (k/m) = sqrt ((.245N/m)/(.010 kg+.002kg)) = 4.52 rad/s f= .719 Hz Is this correct for part a? Can somebody please assist me, thank you!