Question

why friction is proportional to resultant ??​

Answer 1

Answer:

Kinetic friction magnitude is directly proportional to the normal force magnitude and the roughness between the sliding surfaces. Static friction magnitude is directly proportional to the normal force magnitude and the roughness between the sliding surfaces.

Explanation:

hope you are understand

Answer 2

Answer:

Kinetic friction magnitude is directly proportional to the normal force magnitude and the roughness between the sliding surfaces. Static friction magnitude is directly proportional to the normal force magnitude and the roughness between the sliding surfaces.