A 140kg hoop rolls along a horizontal floor so that the hoops center of mass has a speed of 0.150m/sec, how much work must be done on the hoop to stop it?
1
Expert's answer
2020-05-14T09:19:41-0400
The moment of inertia of a hoop is
"I=mr^2."
The rolling loop has kinetic energy of linear motion and rotation:
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