A Fan Rotating with an Initial Angular Velocity of 1000

question 27

Multiple Choice

A fan rotating with an initial angular velocity of 1000 rev/min is switched off. In 2 seconds, the angular velocity decreases to 200 rev/min. Assuming the angular acceleration is constant, how many revolutions does the blade undergo during this time?

• A)10
• B)20
• C)100
• D)125
• E)1200

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Definitions:

Domestic Force

The use of law enforcement or military resources within a country to maintain order, conduct operations, or address internal threats.

Federal Troops

Military forces deployed by the federal government of a nation, often during emergencies or to maintain order.

Public Order

The general societal condition in which public laws, norms, and standards are respected and maintained, ensuring community safety and harmony.

Writ of Habeas Corpus

A legal order that requires a person under arrest to be brought before a judge or into court, to secure the person's release unless lawful grounds are shown for their detention.