Question

un mobil merge cu 1,2 km/h asa ca transformati in m/s

Answer 1

$1,2km/h=\frac{1200m}{3600s}=0,33m/s$

Answer 2

1km=1000m⇒0,2km=20% din 1000
$1000*\frac{20}{100}= \frac{1000*20}{100} = \frac{20.000}{100} =200$⇒1,2km=1000+200=1200m
1h=3600s

1,2km/H=$\frac{1200}{3600} = \frac{1}{3}$$=$0,33m/s
                

Mult noroc!