Bonjour ou bonsoir pouvez vous m’aidez pour l’exercici 2 svp merci d’avance

Réponse:

a)

[tex] \frac{30m}{1s} = \frac{30m }{ \frac{1}{60} min} = 30 \times 60 = 1800[/tex]

30 m/s = 1800 m/min

b)

[tex] \frac{800m}{1min} = \frac{0.8km}{1min} = \frac{0.8km}{ \frac{1}{60} h} = 0.8 \times 60 = 48[/tex]

800 m/min = 48 km/h

c)

[tex] \frac{0.6km}{1min} = \frac{600m}{1min} = \frac{600m}{60s} = 10[/tex]

0,6 km/min = 10 m/s

d)

[tex] \frac{90km}{1h} = \frac{90000 m}{60min} = 1500[/tex]

90km/h = 1500 m/min