A toy car with charge q moves ona frictionless horizontal plane surface,under the influence of a uniform electric field $$\overrightarrow{E}$$ Due to the force q $$\overrightarrow{E}$$, its velocity increases from 0 to 6 $$\frac{m}{s}$$ in one second duration.At that instant the direction of the field is reversed . The car continues to move for two more seconds under the influence of this field .The average velocity and the average speed of the toy car between 0 to 3 séconds are respectively