Problem #0017 Mechanics Sub-menu Problem #0019 Chapters Chapters

18.

Problem 11.45E (HRW)

Calculate the rotational inertia of a wheel that has a kinetic energy of 24,400 J when rotating at 602 rev/min.

Solution:             Click For PDF Version

The angular speed of the wheel in rad/s will be .

The rotational kinetic energy is , where I is the rotational inertia. As the kinetic energy of the wheel is 24,400 J, its rotational inertia will be

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