A yo-yo has a rotational inertia of 900 g · cm2 and a mass of100 g. Its axle radius is 3.2 mm, and its string is 120 cm long.The yo-yo rolls from rest down to the end of the string. (a) Whatis the magnitude of its linear acceleration? (b) How long does ittake to reach the end of the string? As it reaches the end of thestring, what are its (c) linear speed, (d) translational kineticenergy, (e) rotational kinetic energy, and (f) angular speed?
