yes, if y=sqrt(G^2-R^2); F_g=km^2/R^2; R^2=km^2/G; y=sqrt(G^2-km/g); y=sqrt(m(mg^2-k/g))=sqrt(F^2-ka) Now lets look at the system as string, if the string or bridge is tighten at max, look at where [...] Read more