Doar pe 5,7 atat
Urgent!

5.
v₀=108 km/h=30 m/s
t=1 min=60 s
v=v₀+at<=>0=30+60a=>6a=-3=>a=-0,5 m/s²
7.
v₀=90 km/h=25 m/s
v=v₀+at=25+2,5*2=25+5=30 m/s=108 km/h