A hoop of radius \( r \) weights \( m \mathrm{~kg} \). It rolls without sliding along a horizont... VIDEO
A hoop of radius \( r \) weights \( m \mathrm{~kg} \). It rolls without sliding along a horizontal floor so that its centre of mass has a speed \( v \) \( \mathrm{m} / \mathrm{s} \). How much work has to be done to stop it?https://bit.ly/YTAI_PWAP https://www.pw.live
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