A Uniform Disk of Radius 1

question 42

Multiple Choice

A uniform disk of radius 1.2 m and mass 0.60 kg is rotating at 25 rad/s around an axis that passes through its center and is perpendicular to the disk.A rod makes contact with the rotating disk with a force of 4.5 N at a point 0.75 m from the axis of rotation as shown.The disk is brought to a stop in 5.0 s.What is the coefficient of kinetic friction for the two materials in contact?

• A)0.22
• B)0.15
• C)0.64
• D)0.37
• E)0.55

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Definitions:

Political Cultures

The deeply rooted norms, values, beliefs, and attitudes that define the relationship between citizens and government within a political system.

Individual Mandate

A requirement that individuals must obtain health insurance or face penalties, aimed at broadening the pool of insured and lowering health insurance costs.

Health Care Insurance

A system that covers or reimburses medical expenses for individuals, spreading the financial risk of health costs across a large group of people.

Federal Government

The United States' national government consists of three distinct branches: the legislative, the executive, and the judicial.