A Disk with a Rotational Inertia of 5

question 43

Multiple Choice

A disk with a rotational inertia of 5.0 kg . m² and a radius of 0.25 m rotates on a frictionless fixed axis perpendicular to the disk and through its center. A force of 8.0 N is applied along the rotation axis. The angular acceleration of the disk is:

• A) 0
• B) 0.40 rad/s²
• C) 0.60 rad/s²
• D) 1.0 rad/s²
• E) 2.5 rad/s²

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Definitions:

Income Redistribution

The transfer of income from certain individuals or groups to others through mechanisms like taxes, welfare programs, and subsidies, aimed at reducing economic inequality.

Economic Profit

The gap between a company's overall earnings and all its expenses, comprising both direct and indirect costs.

Pure Monopoly

A market structure where a single firm controls the entire supply of a product or service, with no close substitutes.

Barriers to Entry

Obstacles that make it difficult for new competitors to enter a market, such as high startup costs or complex regulations.