Final answer:
There isn't a single speed at which all tires maintain good traction on wet roads due to varying factors like tire design and road conditions. The referenced 165 km/h is specific to certain conditions and is much higher than safe driving speeds on wet roads. Ideal speed refers to the safe speed for turning on a curve without solely relying on tire-road friction.
Step-by-step explanation:
Most tires on vehicles have good traction up to certain speeds when it is raining or the road is wet. However, traction varies with different road and weather conditions and the speed at which a tire can maintain good traction can be less than what would be safe on a dry road. Typically, tire friction reduces as speed increases, and the risk of hydroplaning, where a layer of water builds up between the tires and the road surface, becomes significant at higher speeds.
It is important to note that there is no single speed at which all tires lose traction on wet roads because it depends on various factors including tire design, tread depth, vehicle weight, and road conditions. Generally speaking, as speeds increase, the tire's ability to dispel water decreases, leading to a loss of traction. On a very steeply banked and sharp curve, the ideal speed for maintaining traction would be much lower due to the increased demands on tire friction. The reference to 165 km/h is a theoretical value based on specific conditions, and it is not considered a safe or recommended driving speed on wet roads.
The concept of ideal speed is the maximum safe speed at which a vehicle can maneuver a turn on a curve without relying solely on friction between the tire and the road. Additionally, stopping distances significantly increase on wet surfaces compared to dry ones, as evidenced by a decreased acceleration rate when braking, from 7.00 m/s² on dry concrete to 5.00 m/s² on wet concrete.