Question

Friction coefficient
The force applied in pulling an object on a smooth surface is gradually increased until the object is just about to slip. Which friction coefficient would apply in this situation?

Answer 1

Answer on Question #50085, Physics, Mechanics | Kinematics | Dynamics

Friction coefficient

The force applied in pulling an object on a smooth surface is gradually increased until the object is just about to slip. Which friction coefficient would apply in this situation?

Solution:

Static frictional forces from the interlocking of the irregularities of two surfaces will increase to prevent any relative motion up until some limit where motion occurs. It is that threshold of motion which is characterized by the coefficient of static friction. The coefficient of static friction is typically larger than the coefficient of kinetic friction.

Object is just about to slip, thus we must apply static friction coefficient in this situation

Answer: coefficient of static friction

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