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X-Received: by 2002:a05:6214:418a:b0:66d:2ec2:2d6c with SMTP id ld10-20020a056214418a00b0066d2ec22d6cmr53254qvb.10.1697820013041; Fri, 20 Oct 2023 09:40:13 -0700 (PDT) X-Received: by 2002:a05:6870:c18c:b0:1e1:3367:1429 with SMTP id h12-20020a056870c18c00b001e133671429mr967105oad.10.1697820012781; Fri, 20 Oct 2023 09:40:12 -0700 (PDT) Path: ...!feeds.phibee-telecom.net!2.eu.feeder.erje.net!feeder.erje.net!proxad.net!feeder1-2.proxad.net!209.85.160.216.MISMATCH!news-out.google.com!nntp.google.com!postnews.google.com!google-groups.googlegroups.com!not-for-mail Newsgroups: fr.sci.physique Date: Fri, 20 Oct 2023 09:40:12 -0700 (PDT) In-Reply-To: <da40a6a5-1909-4fbb-a00b-45436ae5dd56n@googlegroups.com> Injection-Info: google-groups.googlegroups.com; posting-host=2001:861:8bb7:5500:d0a3:572f:c659:4fce; posting-account=PKzfqAoAAAC4-vQRW_wt6WFB3xnoeWfi NNTP-Posting-Host: 2001:861:8bb7:5500:d0a3:572f:c659:4fce References: <da40a6a5-1909-4fbb-a00b-45436ae5dd56n@googlegroups.com> User-Agent: G2/1.0 MIME-Version: 1.0 Message-ID: <063282ea-b47c-443e-a409-2c7658b2364bn@googlegroups.com> Subject: =?UTF-8?Q?Re=3A_Th=C3=A9ories_correctes_mais_fausses?= From: Richard Verret <rverret97@gmail.com> Injection-Date: Fri, 20 Oct 2023 16:40:13 +0000 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Bytes: 2785 Lines: 27 Le 20/10/2023 =C3=A0 18:15, Julien Arlandis a =C3=A9crit : > Le 20/10/2023 =C3=A0 18:08, Richard Verret a =C3=A9crit : >> Le 20/10/2023 =C3=A0 17:49, Julien Arlandis a =C3=A9crit : >>> Le 20/10/2023 =C3=A0 17:36, Richard Verret a =C3=A9crit : >>>> On peut donc =C3=A9crire O=E2=80=99M =3D O=E2=80=99O + OM >>>> Soit en posant x=E2=80=99 =3D O=E2=80=99M et x =3D OM, x=E2=80=99 =3D = vt + x sous forme vectorielle. >>>> Quand t =3D 0, x=E2=80=99 =3D x.=20 >>>> J=E2=80=99ai bon? >>> Oui si l'espace est en 1D. >>=20 >> Ne peut-on pas =C3=A9crire x=E2=80=99 =3D vt + x sous forme vectorielle,= c=E2=80=99est =C3=A0 dire si x=E2=80=99, x et v sont des vecteurs ? >> Peut-on =C3=A9crire x=E2=80=99 =3D x + vt sous forme scalaire pour du 1D= ? > Oui, mais dans ce cas on va plut=C3=B4t noter r le vecteur position, les = transformations de Galil=C3=A9e vectorielles s'=C3=A9crivent alors : > r' =3D r - v*t > t' =3D t > O=C3=B9 R' est anim=C3=A9 d'un mouvement rectiligne et uniforme par rappo= rt =C3=A0 R dirig=C3=A9 selon le vecteur +v. Mais il n=E2=80=99=C3=A9tait pas question de transformation jusque l=C3=A0,= juste d=E2=80=99addition vectorielle:=20 O=E2=80=99M =3D O=E2=80=99O + OM. Si l=E2=80=99on pose r=E2=80=99 =3D O=E2= =80=99M, r =3D OM, O=E2=80=99O =3D vt, on reste bien dans une simple additi= on vectorielle. J=E2=80=99ai pas bon ?