Distance s (m) 31 2. (From Physics Olympiad, 2007) A small chunk of ice falls from rest down a frictionless parabolic ice sheet shown in the figure. At the point labeled A in the diagram, the ice sheet becomes a steady, rough incline of angle 30° with respect to the horizontal and friction coefficient Mk. This incline is of lengthh and ends at a cliff. The chunk of ice comes to rest precisely at end of incline (does not fall off the cliff). What is the coefficient of friction uk? 2 – – – – – – –