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Engineering and Tech / Engineering Mechanics Dynamics (1) 1 14 / Chapter 18 / Problem F18-1

Engineering Mechanics Dynamics (1) 1 | 14th Edition | ISBN: 9780133915389 | Authors: Russell C. Hibbeler

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The 80@kg wheel has a radius of gyration about its mass center O of kO = 400 mm

Chapter 18, Problem F18-1

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QUESTION:

The 80-kg wheel has a radius of gyration about its mass center O of \(k_{O} = 400 \ mm\). Determine its angular velocity after it has rotated 20 revolutions starting from rest.

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QUESTION:

The 80-kg wheel has a radius of gyration about its mass center O of \(k_{O} = 400 \ mm\). Determine its angular velocity after it has rotated 20 revolutions starting from rest.

ANSWER:

Problem F18-1

The 80-kg wheel has a radius of gyration about its mass center O of = 400 mm. Determine its angular velocity after it has rotated 20 revolutions starting from rest.

Step by Step Solution

Step 1 of 3

First we write the principle of work and energy.Note that the initial energy of the system is zero,and the only force that does work on the system is P.We solve for the angular velocity in this equation.

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