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A yo-yo has a rotational inertia of 950 g cm2 and a mass of 120 g. Its axle radius is

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A yo-yo has a rotational inertia of 950 g ∙ cm2 and a mass of 120 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) What is the magnitude of its linear acceleration?
(b) How long does it take to reach the end of the string? As it reaches the end of the string, what are its
(c) Linear speed,
(d) Translational kinetic energy,
(e) Rotational kinetic energy, and
(f) Angular speed?

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a The derivation of the acceleration is found in 11 4 Eq 11 13 gives g 1 com MR where the …View the full answer


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Related Book For  answer-question
Fundamentals of Physics

Fundamentals of Physics

ISBN: 978-0471758013

8th Extended edition

Authors: Jearl Walker, Halliday Resnick

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Question Details
Chapter # 11
Section: Problems
Problem: 17
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Question Posted: January 14, 2011 06:31:32
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