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Mathematics, 03.12.2020 23:20 jackfrost5

Bonjour, je suis coincée à la question 4. Est-ce que quelqu'un pourrait m'aider ? Merci On note h(t) la hauteur de la balle, en mètre, t secondes après avoir été lancée. On admet que la courbe représentative de la fonction h est une parabole de sommet S(2,5;6,125). 1. Déterminer sous forme canonique l’expression de h(t) en fonction de t. 2. Développer et factoriser h(t). 3. Pendant combien de temps la balle restera-t-elle au-dessus de 5 m de hauteur ? 4. La sœur de Camille, qui mesure 1,5 m, se trouve à 5,5 m de la maison. La balle l’atteindra-t-elle ? 5. Si aucun obstacle ne se place sur la trajectoire de la balle, à quelle distance de la maison retombera-t-elle au sol ?

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Bonjour, je suis coincée à la question 4. Est-ce que quelqu'un pourrait m'aider ? Merci On note h(t...
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