A body of mass 10kg rests on a rough inclined plane whose angle of tilt...
PHYSICS
JAMB 1990
A body of mass 10kg rests on a rough inclined plane whose angle of tilt ? is variable. ? is gradually increased until the body starts to slide down the plane at 30o. The coefficient of limiting friction between the body and the plane
- A. 0.30
- B. 0.50
- C. 0.58
- D. 0.87
Correct Answer: C. 0.58
Explanation
n = tan 30 = 0.58
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