Quote:
Originally Posted by RedDevil
That distance is not relevant, is it? The boxes would be just as close together. |
I believe it is. To relate speed of a vehicle to wheel speed, the velocity of the tire where it meets the road surface is going to dictate how many revolutions the tire must turn.
I'm trying to remember physics and trigonometry from college, bear with me. If we take the angular velocity of the tire and derive the linear velocity, the formula uses the radius. If the radius changes by some small amount due to a thicker tread, then it will result in a higher linear velocity for a constant angular velocity.
I'm glad you brought up this phenomenon because the radius that will give real world numbers is measured when the tire is under load, with a flat contact patch.