Question

on which factor the force or frictiondepends​

Answer 1

Answer:

force is mass × acceleration

Explanation:

force is directly proportional to mass and acceleration

friction is directly proportional to roughness

hope it will help you

Answer 2

the force of friction depends on:

The materials that are in contact. The two materials and the nature of their surfaces. Rougher surfaces have higher coefficient of frictions but to slide apart. This makes sense in terms of a model in which friction is described as arising from chemical bonds between the atoms of the two surfaces at their points of contact: very flat surfaces allow more atoms to come in contact

b) The force pushing the two surfaces together. Pushing the surfaces together causes the more of the asperities to come together and increases the surface area in contact with each other.

These can be summaried with the equation, $F = \mu F_{N}$ where $F_N$ is the normal force and $\mu$ is the coefficient of friction. Known as Coloumb's equation.