The coefficient of friction between two perfectly smooth surface is? by Sunday | Nov 8 | Physics JAMB | 0 comments A. infinity B. one C. half D. zero Correct Answer: Option D – zero Users Also Read These:A force of 20 N applied parallel to the surface of a…A motorcycle of mass 100kg moves round in a circle…A 500N box rests on a horizontal floor. A constant…If the coefficient of cross elasticity of demand for…The friction which exist between two layers of…