what is the cause of friction?
Answers
Answer:
friction cause in fire during the landing of air pleanes .please mark me as brainliest
፨ Required Answer :
Friction is a force that resists the relative motion between two objects or materials.
The causes of this resistive force are:
- Molecular adhesion.
- Surface roughness.
- Deformations.
Intermolecular forces are responsible for friction. Roughness of the surface also contributes for friction.
፨ Required Explanation :
Take a surface and start polishing it. Polishing reduces roughness of the surface. As we go on polishing, the value of coefficient of friction decreases, therefore reducing friction till a point. Then we will start observing that the value of coefficient of friction starts increasing.
Initially, the roughness of the surface decrease reducing friction. Then intermolecular force start increasing. This increases the value of coefficient of friction.