Théorie et applications des équipollences, par C. A. Laisant.

278 SECONDE PARTIE. - CHAPITRE IX. successives, au lieu d'expressions analytiques d'une interpretation concrete peu saisissable. On trouve ainsi, pour les composantes de la suracc'leration Ml"', d2lv v3 3v dC( v3 (Vt,3 ~= I -",3 3 Oilp cit 2?2 ' d.t 226. On peut avoir interet a decomposer une acceleration d'ordre quelconque suivant le rayon vecteur OM, ct perpendiculairement a cetle direction. On aura ainsi (20) t(p) =_ ( lu.-I- izp) W:. d'oi, par derivation, (21) IM(p+l)= |(d. - w'z) + (, ' ) '- dt p c'est-a-dire dt dzp (22) p4-+l = dt -w p) (23) Zpt-l= dt)- ''@d,tt en appelant o' la vitesse angulaire -t. (Ces formules donnent la solution du proble'me propose. 227. Soient MU,z, MUp deux accelerations d'ordre quelconque. On a aire (MU,, U,) = ((n) cj M(P) - (P) cj 1(p)), et, en prenant les'derivees, (24) () aire (MU.Up)= aire(MU,,~+ Up) -= aire (MU,, Up,4-), generalisation de la propridet du n~ 223.

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Théorie et applications des équipollences, par C. A. Laisant.
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Laisant, C.-A. (Charles-Ange), 1841-1920.
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Paris,: Gauthier-Villars,
1887.
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"Théorie et applications des équipollences, par C. A. Laisant." In the digital collection University of Michigan Historical Math Collection. https://name.umdl.umich.edu/abn7895.0001.001. University of Michigan Library Digital Collections. Accessed June 22, 2025.
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