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10.5 Exercise 10

Avg difficulty 2.5

Consider system A, consisting of two disks of radius R, with both rotating clockwise. Now consider system B, consisting of one disk of radius R rotating counterclockwise and another disk of radius 2R rotating clockwise. All of the disks have the same mass, and all have the same magnitude of angular velocity.

Which system has the greatest angular momentum?

  1. A
  2. B
  3. They're equal.
  4. Not enough information

OpenStax College Physics 2e, 10.5 Angular Momentum and Its Conservation, exercise 10

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Adapted from College Physics © 2022 Rice University. Licensed under CC BY 4.0. Sources: College Physics 2e, College Physics for AP® Courses 2e. Imported at revision f98d7a7.