As a solid disk rolls up and over the top of a hill on a track, its
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As a solid disk rolls up and over the top of a hill on a track, its speed slows to 80 cm/s. It subsequently descends down the other side of the hill. If friction losses are negligible, how fast is the disk moving when it is 18 cm below the top?
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At the top the disk has translational and rotational KE plus its PEG relative to the ...View the full answer
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