Statics and Dynamics Quiz
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A rigid body of mass m undergoes general planar motion. A student sets up the equations of motion and, for convenience, writes ∑MA=IAα, where A is an arbitrary point on the body that is neither the center of mass G nor a fixed point.
Under what condition is the equation ∑MA=IAα valid for an arbitrary body-fixed point A in planar motion, and what is the general correct form if that condition is not met?
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