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Physics / Physics: Principles with Applications 6 / Chapter 8 / Problem 60P

Physics: Principles with Applications | 6th Edition | ISBN: 9780130606204 | Authors: Douglas C. Giancoli

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A uniform disk turns at 2.4 rev/s around a frictionless

Chapter 2, Problem 60P

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QUESTION:

(II) A uniform disk turns at $2.4rev/s$ around a frictionless spindle. A nonrotating rod, of the same mass as the disk and length equal to the disk's diameter, is dropped onto the freely spinning disk, Fig. $8-49$ . They then both turn around the spindle with their centers superposed. What is the angular frequency in rev/s of the combination?

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QUESTION:

(II) A uniform disk turns at $2.4rev/s$ around a frictionless spindle. A nonrotating rod, of the same mass as the disk and length equal to the disk's diameter, is dropped onto the freely spinning disk, Fig. $8-49$ . They then both turn around the spindle with their centers superposed. What is the angular frequency in rev/s of the combination?

ANSWER:

Step 1 of 2

Apply the conservation of angular momentum. The equation can be expressed as,

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