Which is NOT one of the laws of solid friction?
A
The frictional force between two surfaces opposes their relative motion
B
The ratio of frictional force to the normal reaction varies for two given surfaces
C
The ratio of frictional force to the normal reaction is constant for two given surfaces
D
The limiting frictional force is independent of the area of surface in contact.
E
Dynamic frictional force is independent of the relative velocity of the surfaces in contact.
Verified Correct Answer: B.
Physical Principles & Numerical Solution
No expanded working has been attached for this question yet. The verified answer is Option B.
Source: Myschool Past Questions Archive (Record #42848)