A force of 20 N applied parallel to the surface of a horizontal table, is
PHYSICS
WAEC 1992
A force of 20 N applied parallel to the surface of a horizontal table, is just sufficient to make a block of mass 4kg move on the table. Calculate the coefficient of friction between the block and the table. (g = 10ms-2)
- A. 0.05
- B. 0.20
- C. 0.50
- D. 0.80
Correct Answer: C. 0.50
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