I. The frictional force is independent of the area of the surfaces in conduct II....
PHYSICS
JAMB 2000
I. The frictional force is independent of the area of the surfaces in conduct II. The frictional force depends on the nature of the surfaces in contact III. The frictional force depends on the speed of sliding IV. The frictional force is directly proportional to the normal reaction.
Which combination of the above is true of sliding friction?
- A. I, III and IV
- B. I, II and IV
- C. I, II and III
- D. II, III and IV
Correct Answer: B. I, II and IV
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