A Disk Is Free to Rotate on a Fixed Axis

question 39

Multiple Choice

A disk is free to rotate on a fixed axis.A force of given magnitude F, in the plane of the disk, is to be applied.Of the following alternatives the greatest angular acceleration is obtained if the force is:

• A)applied tangentially halfway between the axis and the rim
• B)applied tangentially at the rim
• C)applied radially halfway between the axis and the rim
• D)applied radially at the rim
• E)applied at the rim but neither radially nor tangentially

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Definitions:

Economic Self-interest

The motivation to act in a way that results in the greatest personal benefit or profit.

Economic Behavior

The study of how individuals make decisions to allocate resources under conditions of scarcity.

Selfishness

A trait characterized by concern with one's own interests, often disregarding others' well-being or desires.

Utility

The satisfaction or benefit that a consumer receives from consuming a good or service.