The friction between the two solid surfaces depends on the weight of the objects on the surface and the roughness of the object surfaces.
When the two bodies are in contact such that a force acts to restrict the motion of each body, then the force is known as frictional force. And the phenomenon is called friction.
The expression for the frictional force is given as,
[tex]F = \mu \times N[/tex]
Here,
[tex]\mu[/tex] is the frictional coefficient and N is the normal reaction. (N = mg)
Clearly, the frictional force is dependent on the frictional coefficient of the surfaces and in turn, depends on the roughness of object surfaces. Also, friction depends on a normal reaction whose value is equivalent to the weight of objects on the surface.
Thus, we can conclude that the friction between the two solid surfaces depends on the weight of the objects on the surface and the roughness of the object surfaces.
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