Explain how grease affects frictional force?

In the oily layer (and oil is a liquid with its own properties), fluid friction arises between the rubbing surfaces. The attraction of oil molecules is small and because of this, the layers of oil move relative to each other without much resistance. This explains the sliding effect. The coefficient of fluid friction has a range of 0.001-0.010.
Answer: Grease reduces friction.



One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.