1. The problem statement, all variables and given/known data Due to a jaw injury, a patient must wear a strap (see the figure) that produces a net upward force of 5.00 N 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? 2. Relevant equations [tex]\Sigma[/tex]F=O?? 3. The attempt at a solution I already know the answer its 3.15 N I cant figure out how to get it though. I'm assuming its a equilibrium problem and if it needs an upward force of 5N the force due to gravity would also be 5, right?