Question

which of the following statements is/are true regarding the law of static friction

1. the force of friction is dependent on the area of contact between the two forces
2. the force of friction depends on the roughness of the surfaces
3. the ratio of limiting friction to normal reaction is constant

• A. ii only
• B. i, ii
• C. ii, iii
• D. None of these

Answer 1

Answer:

C. ii, iii

The force of friction is not depends up on the area of contact