The triangular glass rod shown in $($Figure $1)$ has a weight of $0\mathrm{.}40$ N

and is suspended on the surface of the water, for which $\backslash$sigma

$=0.0728$ N$/$m$.$ Assume the water surface is tangent to the surface of the rod at the point of contact. A glass rod is bent into a triangle, each angle of which is $60$ degrees. The length of one side of the triangle is $80$ millimeters. This triangle is suspended on the surface of the water. Cables extend from the corners of the triangle to a ring above the surface of the water. Force P acts vertically upward on the ring. Determine the vertical force P needed to pull the rod free from the surface.

Express your answer using three significant figures and include the appropriate units.