A Figure Skater on Ice with Arms Extended,spins at a Rate

question 15

Multiple Choice

A figure skater on ice with arms extended,spins at a rate of 3.5 rev/s.After he draws his arms in,he spins at 6.0 rev/s.By what factor does the skater's kinetic energy change when he draws his arms in?

• A)2.4
• B)1.7
• C)0.58
• D)0.12

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Definitions:

Mathematical Relationship

A quantifiable correlation or association between two or more variables or sets of data, often represented using equations or models.

Behavioral Prediction

The process of forecasting future behavior based on past and present observations of behavior patterns and trends.

Secondary Drives

Learned drives that are associated with the satisfaction of primary needs, such as the drive to earn money, which can help fulfill basic survival needs.

Acquired Drives

Secondary drives that are learned through conditioning, such as desire for money or achievement, rather than primary drives like hunger or thirst.