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Equation
       
    Name Couple (rotational dynamics)
 
    Equation G = I ⁢ α = I d ⁢ ω d ⁢ t
 
    Definition of terms G = couple, I = moment of inertia, ω = angular velocity
 
    Comments   When a rigid body is pivoted about a fixed axis, the resultant external torque is the product of the moment of inertia with the angular acceleration.
 
    References

University Physics , F W Sears, M W Zemansky, 3rd edition, Addison-Wesley, 1967

       


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