Question

d=8 km delta t=30 min vm=? m/s

Answer 1

Răspuns:

v= d/t => 8 km=8×1000= 8000m

30min= 30×60=1800 sec.

=>Vm= 8000/1800 m/s ( 4,(4) )

Answer 2

Răspuns:

Explicație pas cu pas:

v=d/Δt= 8km/30min=8000m/1800s=80/18=40/9=4si 4/9=4,(4) m/s