We were assigned to do a planking and then prove why it is in equilibrium by computing its torque, etc. We selected the pool ladder rail to do the planking. Our team member who did the planking weighs 74 kilos and 5'1" tall. The pool ladder rails are 1 m above the ground. Torque=Force x momentum arm. I am confused about how to apply the first and second condition of equilibrium. How do I get the forces acted by the pool ladder rails on the my teammate? Are there any other forces acting downward on my teammate aside from her weight? My attempts: ΣT = Fx1 + Fx2 + Fx3 ... ΣT = (1.5548780488 m x 162.8 lbs)+(F x 1 m)+(F x 1 m) Is this correct? Thank you so much!