To determine the velocity of a car that starts from rest and accelerates at a constant rate of 6 m/s², we can use the following kinematic equation:
v = u + at
Where: v is the final velocity u is the initial velocity (in this case, it is 0 m/s as the car starts from rest) a is the acceleration (6 m/s²) t is the time
Since the car starts from rest, the initial velocity (u) is 0 m/s. Therefore, the equation simplifies to:
v = 0 + (6 m/s²) * t
As we do not have the time (t) specified in the question, it is not possible to determine the exact velocity of the car. The velocity will depend on the time elapsed since the car started accelerating.