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QUESTION 7 Q7 A 140-kilogram hoop rolls along a horizontal floor so that the hoop's center of mass has a speed of 0.150 meters per

QUESTION 7

Q7 A 140-kilogram hoop rolls along a horizontal floor so that the hoop's center of mass has a speed of 0.150 meters per second. How much work must be done on the hoop to stop it?

-3.15J

-140J

-21J

-1.6J

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