A yo-yo has a rotational inertia of 790 g·cm2 and a mass of 95 g. Its axle radius is 2.2 mm and its string is 100 cm long. The yo-yo is thrown so that its its initial speed down the string is 1.2 m/s.
(a) How long does the yo-yo take to reach the end of the string?
(b) As it reaches the end of the string, what is its total kinetic energy?
(c) As it reaches the end of the string, what is its linear speed?
(d) As it reaches the end of the string, what is its translational kinetic energy?
(e) As it reaches the end of the string, what is its angular speed?
(f) As it reaches the end of the string, what is its rotational kinetic energy?