Question Detail

PHY 101 Friction Objective Question

Question

The coefficients of friction are independent of which factor?
Options
A The nature of the surfaces in contact
B The area of the surfaces in contact
Correct Answer
C Whether the surfaces are rough or smooth
D The materials the surfaces are made of
Correct Answer

Option B is the correct answer.

Detailed Explanation

The lecture explicitly states that the coefficients of friction are independent of the area of surfaces in contact.

Hint

This is a classic result: friction does not depend on how large the contact area is, only on the materials and the normal force.

Question Info