Terms and Formulae
Terms
Angular Momentum
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Momentum of a particle moving in rotational motion.
Conservation of Angular Momentum
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Principle that states that if no net external torque acts on the system, the
total angular momentum of the system will remain constant
Formulae
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The angular momentum of a single particle
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l = rmv sinθ = rp sinθ
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Vector formula for the angular momentum of a single particle
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l = r×p
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Formula relating torque and angular momentum
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 τ = 
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Formula for the angular momentum of a rigid body
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L = Iω
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Formula relating torque and total angular momentum
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τext = 
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