(Answered) The 30-kg turbine disk has a centroidal radius of gyration

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The 30-kg turbine disk has a centroidal radius of gyration of 175 mm and is rotating clockwise at a constant rate of 60 rpm when a small blade of mass 51 grams at point A becomes loose and is thrown off. Neglecting friction, determine the change in the angular velocity of the turbine disk after it has rotated through

(a) 90°,

(b) 270°.

958_Angular velocity of the turbine disk.jpg

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