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What are the dimensions of coefficient of friction?(a) MLT^-2(b) LT^-1(c) L(d) It is dimensionlessI got this question in exam.Question is from Dimensional Formulae and Equations topic in chapter Units and Measurements of Physics – Class 11

Answer»

The correct answer is (d) It is dimensionless

Easiest explanation: COEFFICIENT of friction is the RATIO of FRICTIONAL force to Normal Reaction force; hence it is dimensionless. The formula for calculating this is, f = µN.



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