Definition:Mass Density/Linear

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Definition

The linear mass density of a one-dimensional body is its mass per unit length.


Symbol

The usual symbol used to denote linear mass density is $\mu$ (Greek letter mu).

Sometimes $\lambda$ (Greek letter lambda) is also used.


Dimension

The dimension of linear mass density is $\mathsf M \mathsf L^{-1}$: mass per unit length.


Units

Thus:

$1 \ \mathrm{kg} \ \mathrm m^{-1} = 10 \ \mathrm g \ \mathrm{cm}^{-1}$


Also known as

Linear mass density is usually referred to just as linear density when it is clear that mass density is the kind of density under discussion.


Also see

  • Results about linear mass density can be found here.