Answer:
Vf = 12 [m/s]
Explanation:
To solve this problem we must use the following equation of kinematics.
[tex]v_{f}=v_{o}+a*t\\[/tex]
where:
Vf = final velocity [m/s]
Vo = initial velocity = 0 (stars from the rest)
a = acceleration = 2 [m/s²]
t = time = 6 [s]
Now replacing:
[tex]v_{f}=0+2*6\\v_{f}=12[m/s][/tex]