Question

Briefly explain the origin of friction.

Answer 1

Answer:

Friction has a substantial impact on many everyday phenomena, such as energy consumption. Makkonen's model is the first to enable quantitative analysis of the friction coefficient of materials.

Explanation:

Friction exists as a key phenomenon in applied physics, whose origin has been studied for centuries. Until now, it has been understood that mechanical wear resistance and fluid lubrication affect friction, but the actual origin of sliding friction has been unspecified.

According to his approach, the amount of friction depends on the surface energy of the materials in query.

Friction originates in nanoscale contacts, as the outcome of new surface formation. The approach presents the generation of frictional 3force and frictional heating in dry contact. It can be applied in computing the friction coefficient of different material combinations.

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Answer 2

1. An object at rest on the table does not move when a very gentle horizontal force is applied to it.
2. It is due to the opposing force exerted by the surface on the object that it resists movement.
3. The frictional force or friction is the name given to this force.
4. Frictional force, like gravitational force, was considered a natural force during the time of Newton and Galileo.
5. However, understanding of atoms, electrons, and protons changed the perspective in the twentieth century.
6. The frictional force is actually the electromagnetic force between the two surfaces' atoms.
7. Even perfectly polished surfaces have microscopic surface irregularities.

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