A uniform block of granite in the shape of a book has face dimensions of 20 cm and 15 cm
Chapter 11, Problem 76(choose chapter or problem)
A uniform block of granite in the shape of a book has face dimensions of 20 cm and 15 cm and a thickness of 1.2 cm. The density (mass per unit volume) of granite is 2.64 g/cm3 . The block rotates around an axis that is perpendicular to its face and halfway between its center and a corner. Its angular momentum about that axis is 0.104 kg m2 /s. What is its rotational kinetic energy about that axis?
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