A Figure Skater Rotating at 5

question 60

Multiple Choice

A figure skater rotating at 5.00 rad/s with arms extended has a moment of inertia of 2.25 kg ∙ m².If he pulls in his arms so his moment of inertia decreases to 1.80 kg ∙ m²,what will be his new angular speed?

• A)2.25 rad/s
• B)4.60 rad/s
• C)6.25 rad/s
• D)0.81 rad/s

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Definitions:

Eukarya

A domain of life consisting of organisms with cells that contain a nucleus, including animals, plants, fungi, and protists.

Consumers

Organisms that obtain energy by consuming other organisms or organic matter, as opposed to producing their own energy through photosynthesis or chemosynthesis.

Decomposed

The process by which organic substances are broken down into simpler organic or inorganic matter, primarily by the actions of microorganisms.

Scientific Theory

A well-substantiated explanation of some aspect of the natural world, based on a body of facts that have been repeatedly confirmed through observation and experiment.