A figure skater (Fig. 9.11) has an initial angular velocity of 3.8 rad/s. She then pulls her
Question:
A figure skater (Fig. 9.11) has an initial angular velocity of 3.8 rad/s. She then pulls her arms in, and her angular velocity increases to 9.5 rad/s. What is the ratio of her final kinetic energy to her initial kinetic energy??
Figure 9.11
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The kinetic energy of a skater depends on her moment of inertia and angular speed No sketch neede...View the full answer
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Related Book For 
College Physics Reasoning and Relationships
ISBN: 978-0840058195
2nd edition
Authors: Nicholas Giordano
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