What is the difference between Rolling Friction and Sliding Friction?
Following is the table with rolling friction vs sliding friction:
Rolling friction | Sliding friction |
Rolling friction takes place when an object rolls on the surface. | Sliding friction takes place when two surfaces are rubbed against each other. |
Rolling friction takes place due to deformation of surfaces. | Sliding friction takes place due to interlocking between microscopic surfaces. |
The coefficient of rolling friction is dependent on radius of the rolling object, depth to which the object can sink, and the toughness of the surface. | The coefficient of sliding friction depends on the texture of the surface and temperature to certain extent. It is independent of external factors. |
Coefficient of rolling friction: Fr = μrN | Coefficient of sliding friction: Fk = μrN |