Chapter 11, Problem 1ASA

To determine

The three general empirical rules to describe friction.

Answer to Problem 1ASA

The three general empirical rules to describe friction are given below.

Explanation of Solution

Friction refers to the force resisting the relative motion between contacting material surfaces, fluid layers and material elements sliding against each other.

The three general emipirical rules for frriction includes:

• Firctional force is independent of the surface area of contact.
• Frictional force is directly propotional to the load, the perpendicular component of the force pressing the surfaces together.
• Frictional force is independent of the sliding speed.

Conclusion:

Thus, the three general empirical rules to describe friction are given above.