What is Friction ? State the laws of limiting friction.
Answers
The laws of limiting friction are given below.
1. The limiting friction depends upon the roughness or smoothness of the surfaces in contact and acts tangentially to the interface between them.
2. The direction of force of friction is always in a way that it opposes the direction of the motion.
3. It is independent of area and shape of the surface in contact as long as the normal reaction remains the same.
4. It is directly proportional to the normal reaction between the two surfaces in contact.
Answer:
Friction ---
Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other.
The direction of limiting friction force is always opposite the direction of motion. (2) It always acts tangential to the two surfaces. (3) It is dependent on the material and the nature of the surfaces in contact. (4) It is independent of the shape and area.
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