(a) A cylindrical shell and a solid cylinder, made of the same material and having the same inertia \(m\) and radius \(R\), roll down a ramp. Is the force of static friction exerted on the shell greater than, smaller than, or equal to that on the solid cylinder? Explain.

(b) For \(\mu_{s}=1\), what is the maximum angle of incline \(\theta\) on which these objects can roll without slipping?