A Ballet Dancer Is Spinning in the Middle of a Horizontal

question 73

Multiple Choice

A ballet dancer is spinning in the middle of a horizontal frictionless stage. Which of the following things could he change by moving parts of his body or his whole body? (There could be more than one correct choice.)

• A) the horizontal component of his linear momentum
• B) his translational kinetic energy
• C) his angular momentum
• D) his moment of inertia
• E) his rotational kinetic energy
• F) the location of his center of mass (or center of gravity)
• G) his total kinetic energy

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Definitions:

Energetic Performance

The level of vigor and enthusiasm displayed by individuals or groups in the execution of tasks.

Team Norm

Shared guidelines or rules of behavior that a team follows to increase efficiency and foster a positive environment.

Behavior Guides

Frameworks, principles, or rules designed to influence or direct individuals’ actions and decisions in specific situations.

Team Personality

The collective personality traits, attitudes, and behaviors that characterize a team and influence its functioning and performance.