Planar lamina
In mathematics, a planar lamina is a closed set in a plane of mass
and surface density
such that:
The center of mass of the lamina is at the point
where
moment of the entire lamina about the x-axis and
moment of the entire lamina about the y-axis.
Example 1.
Find the center of mass of a lamina with edges given by the lines
,
and
, where the density is given as
.
center of mass is at the point
Planar laminas can be used to determine moments of inertia, or center of mass.