Coefficient of friction

Answer 1

The coefficient of friction is a dimensionless quantity that describes the frictional force between two surfaces in contact. It is a measure of how much resistance there is to the sliding or rolling of one surface over another. The coefficient of friction is typically symbolized by the Greek letter "µ" (mu) and has different values depending on the materials and surfaces in contact. A higher coefficient of friction indicates a greater resistance to movement, while a lower coefficient of friction indicates less resistance.