A thin, hollow $0\mathrm{.}500-$kg section of pipe of radius $10\mathrm{.}0$ cm starts rolling $($from rest$)$ down a $15\mathrm{.}0\circ$ incline $5\mathrm{.}60$ m long. What will be its total kinetic energy at the base of the incline? What minimum value must the coefficient of static friction have if the pipe is not to slip?