A String Is Wrapped Around a Pulley of Radius 0

question 12

Multiple Choice

A string is wrapped around a pulley of radius 0.20 m and moment of inertia 0.40 kg . m². The string is pulled with a force of 28 N. What is the magnitude of the resulting angular acceleration of the pulley?

• A)22 rad/s²
• B)14 rad/s²
• C)68 rad/s²
• D)0.55 rad/s²
• E)8.0 rad/s²

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Definitions:

Statistic

A numerical value derived from a sample that is used to estimate properties of the population from which it was drawn.

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Parameter

A measurable attribute that defines or limits the characteristics of a population or a statistical model.

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The entire group of individuals or instances about whom we seek to make conclusions.