what causes friction
Answers
Answer:
Friction is a force that resists the relative motion between two objects or materials. The causes of this resistive force are molecular adhesion, surface roughness, and deformations. Adhesion is the molecular force resulting when two materials are brought into close contact with each other.
Answer:
The atomic and molecular forces of attraction between the two surfaces at the point of contact give rise to friction between the surfaces
Explanation:
the cause of friction is largely due to atomic and molecular forces of attraction between the two surfaces at the point of their actual contact. When a body is placed on the surface of another body, then due to the irregularities in their surfaces,the contact between them occurs at a large number of points. at each point the atoms and molecules of the two surfaces come very close to each other and as such they attract strongly. When we try to move a body placed over the other body, the bonds of attraction oppose the motion