1.
d=v*t
t=10 min=600s
d=8 km=8000 m
v=[tex] \frac{d}{t} [/tex]=[tex] \frac{8000}{600} [/tex]=13,33 m/s
2.
d=v*t
[tex] t_{1} [/tex]=7,83h
[tex] t_{2} [/tex]=8,16h
t=[tex] t_{2} [/tex]-[tex] t_{1} [/tex]=8,16-7,83=0,33 h (face pana la scoala)
v=[tex] \frac{d}{t} = \frac{2}{0,33} =6,06 km/h[/tex]
