Start by modeling the forearm as a simple shape. Draw a visual overview showing all the forces and distances. List the known information and identify what must be found. Pick an axis about which to calculate the torques and determine the torque about this point due to each force acting on the forearm. PROBLEM-SOLVING STRATEGY 8.1: Static equilibrium problems If an object is in static equilibrium, we can use the fact that there is no net force and no net torque as a basis for solving problems. PREPARE: Model the object as a simple shape. Draw a visual overview that shows all forces and distances. List known information. Pick an axis or pivot about which the torques will be calculated. Determine the torque about this pivot point due to each force acting on the object. The torques due to any forces acting at the pivot are zero. Determine the sign of each torque about this pivot point. SOLVE: The mathematical steps are based on the conditions: Fnet 0 and Tnet = 0 Write equations for F=0, F = 0, and T=0. Solve the resulting equations. ASSESS: Check that your answer is reasonable and answers the question.