9-22-CircularMotion - Uniform Circular Motion Uniform circular motion is the motion of an object traveling at a constant speed v on a circular path

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1 Uniform Circular Motion Uniform circular motion is the motion of an object traveling at In a uniform circular motion the (instantaneous) acceleration points Uniform circular motion is the motion of an object traveling at a constant speed v on a circular path of radius r . motion of an object traveling at a constant speed v on a circular path of radius r . a 1 a 2 toward the center, r a c 2 v and its magnitude is Sometimes speed v is not given directly. Instead, period T is given. e.g. a ball revolves twice every second. Period T: time to complete one revolution. T r v 2 Previously, Average acceleration for a car traveling in a circle with constant speed a av v t i f v v v i f v v v What is the average acceleration? X Velocity is a vector, with magnitude and direction . If one of these two factors 0 i f v v changes, then the vector changes. i f v v
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2 CPS Question A car travels at a constant speed around a circular track. Which statement is true concerning this car? (a) The car is characterized by constant velocity. (b) The car is characterized by constant acceleration.
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This note was uploaded on 11/06/2010 for the course PHYSICS 1220 taught by Professor Yung during the Fall '09 term at Missouri (Mizzou).

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9-22-CircularMotion - Uniform Circular Motion Uniform circular motion is the motion of an object traveling at a constant speed v on a circular path

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