Which of the following statements are TRUE about frictional force? i. it is always a...
PHYSICS
JAMB 1995
Which of the following statements are TRUE about frictional force? i. it is always a disadvantage ii. it is sometimes a disadvantage iii. it always exist where there is a relative motion of two bodies that are in contact iv. it is sometimes very useful
- A. i, iii only
- B. i, iv only
- C. ii, iii only
- D. iii, iv only
Correct Answer: D. iii, iv only
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