Question

A yo-yo has a rotational inertia of 750 g·cm2 and a mass of 110 g. Its...

A yo-yo has a rotational inertia of 750 g·cm2 and a mass of 110 g. Its axle radius is 3.3 mm, and its string is 140 cm long. The yo-yo rolls from rest down to the end of the string.

(a) What is the magnitude of its linear acceleration?
cm/s2

(b) How long does it take to reach the end of the string?
s

(c) As it reaches the end of the string, what is its linear speed?
cm/s

(d) As it reaches the end of the string, what is its translational kinetic energy?
J

(e) As it reaches the end of the string, what is its rotational kinetic energy?
J

(f) As it reaches the end of the string, what is its angular speed?
rad/s

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