Which is NOT one of the laws of solid friction?
The frictional force between two surfaces opposes their relative motion
The ratio of frictional force to the normal reaction varies for two given surfaces
The ratio of frictional force to the normal reaction is constant for two given surfaces
The limiting frictional force is independent of the area of surface in contact.
Dynamic frictional force is independent of the relative velocity of the surfaces in contact.
Correct answer is B
No explanation has been provided for this answer.