A Chain, 10

question 51

Multiple Choice

A chain, 10.0 m in length and with a mass of 3.00 kg/m but negligible thickness, is wrapped around a spool with a radius of 25.0 cm and a moment of inertia (not including the chain) of 0.360 kg∙m². With 1.00 m of chain hanging over the side, the spool is released so that it can turn freely about its axle. What is the angular speed of the spool at the moment that 5.00 m of chain are hanging over the side?

• A) 8.90 rad/s
• B) 17.8 rad/s
• C) 19.4 rad/s
• D) 22.1 rad/s
• E) 44.3 rad/s

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Definitions:

Business unionism

A model of labor unions focusing primarily on improving pay, benefits, and working conditions, rather than broader social or political change.

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A system of beliefs or ideas concerning the nature of existence, knowledge, values, reason, mind, and the universe.

German works council

Employee representative bodies in Germany that work with employers to discuss and resolve workplace issues, distinct from trade unions but also focusing on workers' rights.

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An organized association of workers formed to protect and further their rights and interests.