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Physics / Sears and Zemansky's University Physics with Modern Physics 13 / Chapter 9 / Problem 11DQ

Sears and Zemansky's University Physics with Modern Physics | 13th Edition | ISBN: 9780321696861 | Authors: Hugh D. Young; Roger A. Freedman; A. Lewis Ford

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Chapter 9, Problem 11DQ

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QUESTION:

Problem 11DQ

How might you determine experimentally the moment of inertia of an irregularly shaped body about a given axis?

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QUESTION:

Problem 11DQ

How might you determine experimentally the moment of inertia of an irregularly shaped body about a given axis?

ANSWER:

Solution 11DQ

Step 1 of 2

A person can determine the moment of inertia of the irregular body relative to the vertical axis through the centre of mass of the irregular body.

Consider the body of person as an irregular shape. If person stand on a rotating turntable rotating at constant angular speed about a vertical axis, the component of angular moment of person’s body along the axis of rotation is proportional to the moment of inertia.

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