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A solid 0.5750-kg ball rolls without slipping down a track toward a loop-the-loop of radius R...

A solid 0.5750-kg ball rolls without slipping down a track toward a loop-the-loop of radius R = 0.6550 m. What minimum translational speed vmin must the ball have when it is a height H = 1.026 m above the bottom of the loop, in order to complete the loop without falling off the track?

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