A Mechanic Is Examining the Wheel of a Bicycle to Adjust

question 72

Multiple Choice

A mechanic is examining the wheel of a bicycle to adjust the brake. With the bicycle off the ground, he manually rotates the wheel until it reaches an angular speed of 12.0 rad/s and then allows it to coast to a stop. If the wheel has a moment of inertia of $0.100 \mathrm {~kg} \cdot \mathrm { m } ^ { 2 }$ and the wheel slows uniformly to a stop in 160 s, what is the magnitude of the retarding torque?

• A) \(1,33 \mathrm {~N} \cdot \mathrm { m }\)
• B) \(1.67 \mathrm {~N} \cdot \mathrm { m }\)
• C) \(0.00750 \mathrm {~N} \cdot \mathrm { m }\)
• D) \(0.0787 \mathrm {~N} \cdot \mathrm { m }\)
• E) \(1.00 \mathrm {~N} \cdot \mathrm { m }\)

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Definitions:

Economic Development

The process through which a nation improves the economic, political, and social well-being of its people, often through targeted policies and programs to stimulate growth and reduce poverty.

West

Refers to the western part of the United States, which was characterized by its frontier and expansionist period during the 19th century, playing a significant role in the nation's development.

South

A direction or location often associated with the southern part of a country or region; contextually, it could refer to the Confederate states in the US Civil War, or the Global South in international relations.

Women

Refers to adult human females, often highlighting their roles, rights, or issues in society.