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In this video we will talk about movement and speed at the 1st Spé level. We will start by seeing what the speed vector is and then the speed variation vector. ???? Visit us on the site: https://mathrix.fr/ ???? Subscribe: http://tinyurl.com/kx99x2n ???? Instagram @MathrixVideos (stories & lives) ???? Snapchat MathrixVideos (stories) ???? Twitter / mathrixvideos ???? Facebook https://www.fb.me/mathrix.fr