When an impulsive force is acted upon a rigid body, (and the force doesn't pass through the centre of mass) why does the body rotates specifically about an axis passing through centre of mass ?
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4http://physics.stackexchange.com/q/151374/ I think you'll find your answer here – Sad_lab_rat Sep 19 '16 at 16:16
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Who says it does? Look up center of percussion. – Mike Dunlavey Sep 19 '16 at 16:24
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1Another possible duplicate : What is the proof that a force applied on a rigid body will cause it to rotate around its center of mass? – sammy gerbil Sep 19 '16 at 16:35
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An impulsive force directed along a line crossing the center of mass doesn't produce a torque relative to this center. It causes only a linear momentum change, i.e., a translational movement and no rotation of the body. Any other impulsive force on the body produces a torque relative to the center of mass causing an angular acceleration of the body around the center of mass (and a linear acceleration). This results in a constant angular momentum, i.e., a constant rotation of the body around an axis through the center of mass after the impulsive force has ended. A free floating rotating body always rotates around an axis going through its center of mass.
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The first sentence is a bit hard-to-read, please consider an improvement. – Leo Liu Jun 24 '20 at 19:13