Réponse:
1.a 340m/s
1.b t1 = 950/340 = 2.79s
2. t2 = 2.6+2.79 = 5.39s
3. v=d/t donc v = 950/5.39 = 176.3m/s
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Réponse:
1.a 340m/s
1.b t1 = 950/340 = 2.79s
2. t2 = 2.6+2.79 = 5.39s
3. v=d/t donc v = 950/5.39 = 176.3m/s