jmc

The intersection of these lines creates a triangle shown in the figure. Starting from the vertex closest to angle 2 and moving clockwise, label the triangle's vertices $A$, $B$, and $C$. Since $\angle ABC$ is a vertical angle of angle 1, it is equal to 50 degrees. Since $\angle BCA$ is a right angle (the two lines intersecting to form the angle are perpendicular) and since the interior angles in the triangle sum to 180 degrees, $\angle CAB=180-90-50=40$ degrees. Since angle 2 is supplementary to $\angle CAB$, angle 2 is equal to $180-40=\boxed{140}$ degrees.