A thin solid disk of mass 21.6 kg is rotating at 10.6 rad/s about an axis through its center and perpendicular to the disk. If the kinetic energy of the rotating disk is 46.8 J, what must be the diameter of this disk to achieve this energy? The moment of inertia for thin solid disk is I = ½ mr². 19.6 cm 27.8 cm 39.3 cm 55.5 cm

A thin solid disk of mass 21.6 kg is rotating at 10.6 rad/s about an axis through its center and perpendicular to the disk. If the kinetic energy of the rotating disk is 46.8 J, what must be the diameter of this disk to achieve this energy? The moment of inertia for thin solid disk is I = ½ mr². 19.6 cm 27.8 cm 39.3 cm 55.5 cm

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter12: Rotation I: Kinematics And Dynamics

Section: Chapter Questions

Problem 78PQ

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