An Ice Skater Has a Moment of Inertia Of $5.0 \mathrm {~kg} \cdot \mathrm { m } ^ { 2 }$

question 62

Multiple Choice

An ice skater has a moment of inertia of $5.0 \mathrm {~kg} \cdot \mathrm { m } ^ { 2 }$ when her arms are outstretched, and at this time she is spinning at 3.0 rev/s. If she pulls in her arms and decreases her moment of inertia to 2.0 $\mathrm { kg } \cdot \mathrm { m } ^ { 2 }$ how fast will she be spinning?

• A) 7.5 rev/s
• B) 3.3 rev/s
• C) 10 rev/s
• D) 2.0 rev/s

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Definitions:

Principle of Opposites

The concept that states opposing forces or tendencies are inherent in the human psyche and are necessary for balance and psychological development.

Conflicts

Internal or external struggles resulting from opposing needs, desires, or demands.

Polarities

Dualities or opposing forces that create tension and dynamics within various contexts, such as personality, politics, or physics.

Perceiving

The process of becoming aware of or understanding sensations and information through the senses.