024 Phys211 S10 Angular Momentum

024 Phys211 S10 - 1 Angular Momentum Phys211 Spring 2009 Essential University Physics J Wolfson Introductory Question A turntable on frictionless

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3/30/2010 1 Angular Momentum Phys211 Spring 2009 3/31/10 Essential University Physics, J. Wolfson 1 3/31/10 A turntable on frictionless bearings rotates freely. A disk initially at rest is dropped onto the turntable. What happens? A. The turntable slows down B. The turntable speeds up C. The turntable neither speeds up nor slows down D. The turntable stops Introductory Question Essential University Physics, J. Wolfson 3/31/10 Angular Momentum p r L I L Individual point particles Comparable to p =m v Applies in all cases we will see Essential University Physics, J. Wolfson
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3/30/2010 2 3/31/10 Changing Angular Momentum Q1: How does NET force relate to momentum? Q2: How do you expect NET torque to relate to angular momentum? dF dp A)p = B)p = ΔF C)F = Δp D)F = dt dt d dL A)L = B)L = Δ C) = ΔL D) = dt dt Essential University Physics, J. Wolfson 3/31/10 A special case There is one situation in which F net =m a does not hold true – when mass
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This note was uploaded on 10/31/2010 for the course PHYS 211 taught by Professor Melendorf during the Spring '10 term at Illinois Central.

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024 Phys211 S10 - 1 Angular Momentum Phys211 Spring 2009 Essential University Physics J Wolfson Introductory Question A turntable on frictionless

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