Final answer:
The angle between the velocity of the left-most point on each tire and the road is 90 degrees.
Step-by-step explanation:
The angle, measured in degrees, between the velocity of the left-most point on each tire and the road can be calculated using trigonometry.
When a car is traveling along a flat, horizontal road at a constant speed, the left-most point on each tire is moving in a circular motion. The angle between the velocity vector of this point and the road is equal to the angle between the radius of the tire and the tangent line at that point. This angle is always 90 degrees.
Therefore, the angle between the velocity of the left-most point on each tire and the road is 90 degrees.