A Playground Merry-Go-Round Has a Radius of 3

question 29

Multiple Choice

A playground merry-go-round has a radius of 3.0 m and a rotational inertia of 600 kg∙m².It is initially spinning at 0.80 rad/s when a 20-kg child crawls from the center to the rim.When the child reaches the rim the angular velocity of the merry-go-round is:

• A)0.62 rad/s
• B)0.73 rad/s
• C)0.77 rad/s
• D)0.91 rad/s
• E)1.1 rad/s

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Definitions:

Chess and Thomas

Refers to Stella Chess and Alexander Thomas, developmental psychologists known for their research on temperament in children.

Goodness of Fit

A concept in psychology that explains how well an individual's temperament matches with their environment, affecting their development and behavior.

Temperament

The inherent part of an individual's personality, including aspects of their character and emotional responses.

Environmental Demands

refer to the pressures and requirements placed on an individual or organism by their surroundings, including social, physical, and biological factors.