Question

plisssss dau coroanaaaa❤​

Answer 1

Răspuns:

1. v media= d total

distanta=45km=45,000m

timpul=50min=3000s

v medie=45,000m:3000s=15m/s

1s=15m

1h=3600s

3600×15m=54,000=54km

Raspuns=viteza medie este 15m/s=54 km/m

2. d=b67-b52=67-52=15km=15000 m

d=v*t=>t=d/v=15000/5=3000 s=50 min

15:00+0:50=15:50

El ajunge acasa la ora 15:50

3. d=v×t

d=5m/s×7200s

d=36000m

4. 5m/s in ore

Înmulțeşti totul cu 3600

5×3600=18000 m intro ora

3600 m/ 2h