lecture07_Feb2

lecture07_Feb2 - Page Motion in a Circle: Motion in a...

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Unformatted text preview: Page Motion in a Circle: Motion in a Circle: Kinematics Kinematics z Uniform circular motion Centripetal acceleration z Angular quantities Angular displacement Angular velocity Angular acceleration Relation between linear and angular Rolling without slipping z Non-uniform circular motion Radial and tangential components Constant angular acceleration General Principles General Principles Page Uniform Circular Motion Uniform Circular Motion New Topic Question : A car drives around a circular track at a constant speed (say 30 mph). Is the velocity of the car constant? The speed is constant, this is true. However, the velocity , which involves both magnitude and direction , is not constant, since the direction is continually changing. Since velocity is not constant, the car is accelerating . Page Uniform Circular Motion Uniform Circular Motion Whats particles acceleration ? Centripetal Acceleration Centripetal Acceleration r l v v r v t r l v t v a 2 = = = Similar angles: Page The Big Result: The Big Result: Example: Example: Uniform Circular Motion Uniform Circular Motion z A pilot testing a new F18 in a circular turn will pass out...
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This note was uploaded on 09/26/2010 for the course PHYS 021 taught by Professor Dick during the Spring '08 term at GWU.

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lecture07_Feb2 - Page Motion in a Circle: Motion in a...

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