In the figure, using the conventional cartesian coordinate s…

In the figure, using the conventional cartesian coordinate system in 2-D (right direction is positive x, left direction is negative x and upward direction is positive y, downward direction is negative y, CW negative, CCW positive), it is found that the reaction forces at point A are Ax = -400 N and Ay = -96 N. In this case, what are the internal forces at point C: normal force (Nc), bending moment (Mc), and shear force(Vc);   (Nc, Mc, Vc)?

The boy (hanging) in the picture weighs 100 lb and the woman…

The boy (hanging) in the picture weighs 100 lb and the woman weighs 200 lb. The coefficient of static friction between her shoes and the ground is 0.8. Between the cliff and the rope, assume µβ ≤ 0.2. The boy will ______ ?  (Assume that the girl is using her 100% effort.)