What is the reason why Volkswagen brakes better in wet weather than in dry weather?

For the above situation, the correct answer cannot be given. It should be that the braking effect in wet weather is not as good as that in dry weather. From the technical principle, the total braking force generated by the wheels can only be less than or equal to the adhesion between the wheels and the road. The adhesion between the wheel and the road mainly depends on the adhesion coefficient, which has a great relationship with the climatic conditions of the road surface. For example, the adhesion coefficient of dry asphalt pavement is .6, and the adhesion coefficient of wet asphalt pavement is reduced to .4, that is, by 1/3, so the braking distance will change greatly. Therefore, the friction coefficient between tire and pavement in wet weather is not as good as that in dry weather, so the effect is also worse.

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