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A disk with a c value of ½, a mass of 2 kg, and radius of...

A disk with a c value of ½, a mass of 2 kg, and radius of 0.36 meters, rolls without slipping down an incline which has a length of 9 meters and angle of 30 degrees. At the top of the incline, the disk is spinning at 21 rad/s. How fast is the disk moving (center of mass) at the bottom of the incline in m/s?

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