oscillations driven by a periodic force F=F_0 cos(w(omega)t). To analyze the expression for the amplitude of a driven oscillator, we will rewrite it in dimensionless form. 

Preliminary stuff. Step 1: show that a constant force F_0 applied to the oscillator will stretch the spring by A_0=F_0/(m w_0 ^2) where w_0 is the natural frequency of the oscillator. Length A_0 will be our “meter stick” in this problem, and we will measure the amplitude of oscillations in terms of a dimensionless quantity y=A/A_0. 

Step 2: following the class notes, express y in terms of a dimensionless “frequency” x=w/w_0 and the quality factor Q. 

Now, the actual problem. Analyze y(x) and find the maximum dimensionless amplitude ymax and at what dimensionless frequency xmax it is reached.