Question

LAQ : Explain with an example that a quantity may be unitless

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Answer

Question

Explain with an example that a quantity may be unitless.

Answer

A quantity may be unitless if it is a ratio of two physical quantities with the same units that cancel each other out. For example, the coefficient of friction is a unitless quantity since it is the ratio of the force of friction (in Newtons, N) to the normal force (also in N), which cancels each other out.

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