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A yo-yo has a rotational inertia of 960 g·cm2 and a mass of 130 g. Its...

A yo-yo has a rotational inertia of 960 g·cm2 and a mass of 130 g. Its axle radius is 3.4 mm and its string is 100 cm long. The yo-yo is thrown so that its initial speed down the string is 1.1 m/s. As the yo-yo reaches the end of the string, what are the following values?

(a) its total kinetic energy

(b) its linear speed

(c) its translational kinetic energy


(d) its angular speed


(e) its rotational kinetic energy


(f) the time taken to reach the end of the string

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