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Unformatted text preview: for linear momentum. From this equation for a rigid body we can also generate a statement relating external torque and total angular momentum: ext = Just as an external force changes the total linear momentum of a system of particles, an external torque changes the angular momentum of a rigid body. To illustrate this very simple concept, we examine a very simply situation. Consider a bicycle wheel. By pedaling the bike we exert a net external torque on the wheel, causing its angular velocity to increase, and thus its angular momentum to follow suit. In the next section , we will use the equation relating torque and angular momentum to derive another conservation law: the conservation of angular momentum....
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This note was uploaded on 02/09/2012 for the course PHY PHY2053 taught by Professor Davidjudd during the Fall '10 term at Broward College.
 Fall '10
 DavidJudd
 Physics, Angular Momentum, Momentum

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