Bonjour,
4 mn 3 s = (4 × 60 + 3) s = 243 s
vitesse = distance ÷ temps
= 400 ÷ 243
= 1,64609053..... m/s
≅ 1,65 m/s
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Bonjour,
4 mn 3 s = (4 × 60 + 3) s = 243 s
vitesse = distance ÷ temps
= 400 ÷ 243
= 1,64609053..... m/s
≅ 1,65 m/s