Which of the following factors does not affect the amount of friction generated between two dry surfaces?
A. the coefficient of friction between the two surfaces
B. the surface area in contact
C. the reaction force
D. the normal force
Answer: B
Which of the following factors does not affect the amount of friction generated between two dry surfaces?
A. the coefficient of friction between the two surfaces
B. the surface area in contact
C. the reaction force
D. the normal force