In the figure below, a small disk of radiusr = 2.00 cm has been glued to the edge of a larger disk of radius R = 4.10 cm so that the disks lie in the same plane. The disks can be rotated around a perpendicular axis through point O at the center of the larger disk. The disks both have a uniform density (mass per unit volume) of 1.70 x 103 kg/m3 and a uniform thickness of 4.70 mm. What is the rotational inertia of the two-disk assembly about the rotation axis through O? kg · m2

In the figure below, a small disk of radiusr = 2.00 cm has been glued to the edge of a larger disk of radius R = 4.10 cm so that the disks lie in the same plane. The disks can be rotated around a perpendicular axis through point O at the center of the larger disk. The disks both have a uniform density (mass per unit volume) of 1.70 x 103 kg/m3 and a uniform thickness of 4.70 mm. What is the rotational inertia of the two-disk assembly about the rotation axis through O? kg · m2

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter15: Fluid Mechanics

Section: Chapter Questions

Problem 68P

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Concept explainers

Mechanical Properties of Solids

There are three types of matter- solid, liquid and gas. Out of them, solids have a rigid shaped and size. The intermolecular forces of attractions in solids are greatest. Mechanical properties are the physical properties of a material which it shows, when it is provided with certain amount of force or load. These properties are to be kept in mind for various purposes. When a force is applied to an object, the object may or may not get deformed depending upon its elastic property. But every time the object develops a restoring force against the force applied. This is commonly known as stress. If the object changes its dimensions due to the force applied it develops strain ( which is the ratio of change in dimension to the original dimension).

Question

In the figure below, a small disk of radius r = 2.00 cm has been glued to the edge of a larger disk of radius R = 4.10 cm so that the disks lie in the same plane. The disks can be rotated around a
perpendicular axis through point O at the center of the larger disk. The disks both have a uniform density (mass per unit volume) of 1.70 x 103 kg/m³ and a uniform thickness of 4.70 mm. What
is the rotational inertia of the two-disk assembly about the rotation axis through O?
kg · m2
•0

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