The diagram shows a sheet of uniform thickness. An open envelope
is formed by folding along and by gluing and
Show that the distance of the centre of mass from is:Code:C B * - - - - - * | | * | | * - + - - o - - + -o- - -* - - | Q O| P * A | | * * - - - - - * F G
The area (mass) of is: .
The distance from its center of mass to the origin
. . is: .
Hence, its moment is: .
The center of mass of the square is at
Its mass is: .
Its moment is: .
The total moment is: .
The total mass is: .
Hence, the center of mass is at: .
It is units to the left of .