A780g, 50-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 1000n 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 2.5ms.
what is the rod's angular velocity immediately after the blow? the book gives the answer 8.0rad/s
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A780g, 50-cm-long metal rod is free to rotate about a frictionless axle at one end. while at rest, t...
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