The loading on the bookshelf is distributed as shown. Determine the magnitude of the equivalent resultant location, measured from point O.
Given:
{ w }_{ 1 } = 2\frac { Ib }{ ft }
{ w }_{ 2 } = 3.5\frac { Ib }{ ft }
a = 2.75 ft
b = 4 ft
c = 1.5 ft