Explain how grease affects frictional force?
June 27, 2021
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.
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