Réponse :
18 000J
Explications :
Ec = 1/2 x m x v² = 1/2 x 160 x 15² = 18 000 J
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Réponse :
18 000J
Explications :
Ec = 1/2 x m x v² = 1/2 x 160 x 15² = 18 000 J