phys111_oct23_lecture.pdf

# phys111_oct23_lecture.pdf - Clicker Question 10.5 Recap A...

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• Yousef95
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Clicker Question 10.5 Recap! A spinning figure skater pulls his arms in as he rotates on the ice. As he extends his arms, what happens to his angular momentum L and kinetic energy K ? A. L and K both increase. B. L stays the same; K increases. C. L increases; K stays the same. D. L stays the same; K decreases.

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Clicker Question 10.5 Recap! A spinning figure skater pulls his arms in as he rotates on the ice. As he extends his arms, what happens to his angular momentum L and kinetic energy K ? A. L and K both increase. B. L stays the same; K increases. C. L increases; K stays the same. D. L stays the same; K decreases.
Rigid body rotation about a moving axis The motion of a rigid body is a combination of translational motion of the center of mass and rotation about the center of mass. The kinetic energy of a rotating and translating rigid body is: K = 1/2 Mv cm 2 + 1/2 I cm ω 2

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Total Acceleration of a yo-yo example problem!
Rotational Kinetic Energy and Angular Momentum

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