A. independent of the surface area in contact
B. independent of the relative motion between layers
C. dependent on the normal reaction
D. in opposition to the motion
Correct Answer: Option D
D. in opposition to the motion
A. independent of the surface area in contact
B. independent of the relative motion between layers
C. dependent on the normal reaction
D. in opposition to the motion
Correct Answer: Option D
D. in opposition to the motion
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