A hoop of radius 3m weighs 150 kg. It rolls along a horizontal floor so that its center of mass has a speed of `15cm//sec`. How

A hoop of radius 3m weighs 150 kg. It rolls along a horizontal floor so that its center of mass has a speed of `15cm//sec`. How much work has to be done to stop it? ltbrlt [Hint : A hoop is a ring]

A hoop of radius 3m weighs 150 kg. It rolls along a horizontal floor so that its center of mass has a speed of `15cm//sec`. How much work has to be do

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