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 -
E.
2.00
Correct Answer: Option C
Explanation
μ= F/mg = 20/40 = 0.5