Labelling the tensions:

The net tension in the x-axis will be:

ΣT_{x} = T_{1} sin θ - T_{2} sinθ

Along the y-axis

ΣT_{y} = T_{1} cosθ + T_{2} cos θ

But ΣT_{y }= 5.00N

Due to a jaw injury, a patient must wear a strap (see the figure) that produces a net upward force of 5.00N on his chin. The tension is the same throughout the strap.

To what tension must the strap be adjusted to provide the necessary upward force?