For this part, imagine that the string is wound around the center axle of a yo-yo; the axle radius is raxle, but the yo-yo casing has a radius rcasing≫raxle and moment of inertia I≫mr2axle. In the limit the moment of inertia of the yo-yo I→[infinity] and the mass m of the yo-yo remains finite, what magnitudes would you expect for the tension T in the vertical section of string and the downward acceleration a of the center of mass?