v=72km/h=20 m/s. Folosim legea miscarii rectilinii uniform variate si obtinem:
x=[tex] x_{0} [/tex] + [tex] v_{0} [/tex] · t + [tex] \frac{1}{2} [/tex] a ·[tex] t^{2} [/tex]
x=[tex] \frac{1}{2} [/tex] a · 100
x=[tex] \frac{100a}{2} [/tex]
x=50a =50·2=100m
Sper ca am ajutat :)