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johannaduaso
@johannaduaso
May 2022
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Bonjour besoin de votre aide c pour demain est j ai du mal à comprendre merci bcp
Exercice 8
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ariigarciaaa
- On convertit la vitesse en m/s:
V = 130km/h
V = (130 x 1000 m )/ 3600 s
V = 36,1 m/s
- On convertit la masse en kg:
m = 1,5 t
m= 1,5 x 1000
m = 1500 kg
- On applique la formule Ec = 1/2 x m x V^2
A.N: Ec = 1/2 x 1500 x 36,1^2
Ec = 977407,5 J
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johannaduaso
Merci bcp pour votre aide
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Lista de comentários
V = 130km/h
V = (130 x 1000 m )/ 3600 s
V = 36,1 m/s
- On convertit la masse en kg:
m = 1,5 t
m= 1,5 x 1000
m = 1500 kg
- On applique la formule Ec = 1/2 x m x V^2
A.N: Ec = 1/2 x 1500 x 36,1^2
Ec = 977407,5 J