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Sagot :

YESMINETH

Réponse:

Exercice 4:

1) 8-7.30= 30min ou 1/2 heure.

2) V=d÷t=3÷(1÷2)= 6km/h

Exercice 5:

1) 105.88÷3.6≈29.4 m/s

3) 296÷3.6≈82.2 m/s

4) V=d÷t=1681÷24≈70.04 km/h

70.04÷3.6≈19.4 m/s

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