A force of 20 N applied parallel to the surface... - WAEC Physics 1992 Question
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 = 10ms2)
A
0.05
B
0.20
C
0.50
D
0.80
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Correct Option: C
μ= F/mg = 20/40 = 0.5
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