A uniform,solid flywheel of radius 1.4 m and mass 15 kg rotates at 2.4 rad/s.What is the magnitude of the flywheel's angular momentum?

Question

Quizplus · Accepted Answer

The angular momentum L of a solid flywheel is given by L = Iω, where I is the moment of inertia and ω is the angular velocity. For a solid disk, I = (1/2)mr². Substituting the given values: I = (1/2)(15 kg)(1.4 m)² = 14.7 kg∙m². Then, L = 14.7 kg∙m² * 2.4 rad/s = 35.28 kg∙m²/s, which rounds to 35 kg∙m²/s.

A Uniform,solid Flywheel of Radius 1