A) wet towel
B) oily marble floor
C) surface of cardboard
D) surface of a new tyre
Correct Answer: B
Solution :
Friction is maximum on a rough surface and it is minimum on a smooth surface. In addition, application of lubricants on surfaces reduces the friction. Oil is a lubricant. Application of oil on a marble surface reduces its friction. Hence, friction of an oily marble floor will be the minimum among the given surfaces. The correct answer is B.You need to login to perform this action.
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