Orbiting spacecraft contain internal gyroscopes that are usedto control their orientation. (a) Apply the principle of conservationof angular momentum to determine the direction aspacecraft will rotate if an internal gyroscope begins to rotatein the counterclockwise direction. (b) How many mutually perpendiculargyroscopes with fixed axes of rotation are requiredto have full control over the spacecraft’s orientation?

University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter11: Angular Momentum
Section: Chapter Questions
Problem 89AP: A solid cylinder of mass 2.0 kg and radius 20 cm is rotating counterclockwise around a vertical axis...
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Orbiting spacecraft contain internal gyroscopes that are used
to control their orientation. (a) Apply the principle of conservation
of angular momentum to determine the direction a
spacecraft will rotate if an internal gyroscope begins to rotate
in the counterclockwise direction. (b) How many mutually perpendicular
gyroscopes with fixed axes of rotation are required
to have full control over the spacecraft’s orientation?

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