1. Reverse the direction of the load in Example 2.4 and recalculate the total potential energy. Then


1. Reverse the course of the load in Example 2.4 and recalculate the entirety possible motive. Then use this esteem to get the equilibrium esteem of misconception.

2. The nonlinear emerge in Figure P2–20 has the force/deformation analogy f = kd2. Express the entirety possible motive of the emerge, and use this possible motive to get the equilibrium esteem of misconception.