Question

Define limiting friction.​

Answer 1

The maximum friction that can be generated between two static surfaces in contact with each other. Once a force applied to the two surfaces exceeds the limiting friction, motion will occur. For two dry surfaces, the limiting friction is a product of the normal reaction force and the coefficient of limiting friction.

Answer 2

Maximum value of static friction between two surfaces in contact is called Limiting friction. Limiting friction is directly proportional to the normal reaction between the surfaces in contact. Limiting friction can adjust itself to nullify the external force.

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