A yo-yo has a mass of 0774 kilogram a moment of inertia of, Ask an Expert

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A yo-yo has a mass of 0.774 kilogram, a moment of inertia of 0.01 kgm², and a string that is 0.764 meter in length. If it climbs the string therefore that it just barely makes it to the top, obtain what was its angular velocity just before it started up?

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