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A780 g , 54-cm-long metal rod is free to rotate about a frictionless axle at one end. while at rest, the rod is given a short but sharp 1000 n hammer blow at the center of the rod, aimed in a direction that causes the rod to rotate on the axle. the blow lasts a mere 2.5 ms .what is the rod's angular velocity immediately after the blow?
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A780 g , 54-cm-long metal rod is free to rotate about a frictionless axle at one end. while at rest,...
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