Uniqueness of the angular velocity of a rigid body: Correction of two faulty proofs

Authors
Lemos, NA
Citation
Na. Lemos, Uniqueness of the angular velocity of a rigid body: Correction of two faulty proofs, AM J PHYS, 68(7), 2000, pp. 668-669
Citations number
2
Categorie Soggetti
Physics
Journal title
AMERICAN JOURNAL OF PHYSICS
ISSN journal
00029505 → ACNP
Volume
68
Issue
7
Year of publication
2000
Pages
668 - 669
Database
ISI
SICI code
0002-9505(200007)68:7<668:UOTAVO>2.0.ZU;2-3
Abstract
The angular velocity is an absolute or intrinsic property of a rigid body; that is, all points of a rotating rigid body have the same angular velocity . This fact is well known, but its proof is often erroneous. Here we correc t two faulty proofs of this result, one in Goldstein's famous textbook and the other published nearly 30 years ago in this journal. (C) 2000 American Association of Physics Teachers.