How does the modulus of the dry sliding friction force depend on the modulus of the relative velocity?

At low speeds, the sliding friction modulus is slightly less than the maximum sliding friction force. At high speeds, the modulus of sliding friction increases.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.