Question

how does friction depends on mass of an object time nature of the surfaces in contact force​

Answer 1

Answer:

he coefficient of friction doesn't depend on the mass of the object. ... That means that the component of the gravitational force perpendicular to the plane must be equal to the magnitude of the normal force and the component parallel to the plane must be equal to the frictional force.

Answer 2

$\huge\underline\mathbb\color{purple}{✯ANSWER✯}$

Friction force depends on the nature of the surface in contact. If the surface area is rough then the frictional co-efficient of the surface will also be larger thus will need more force to slide increasing friction. On the other hand if the surface area is smooth the co-efficient of friction between two surfaces will be less. Thus friction depends on the nature of the surface in contact.

hope it helps...... ❤️