Assuming that the hinge at A is removed and that the hinge at B can exert couples about the y and x axes. Problem 4.124: A small door having a mass of 7 kg is attached by hinges A and B to a wall and is held in the horizontal position shown by rope EFH. The rope passes around a small, frictionless pulley at F and is tied to a fixed cleat at H. Assuming that the hinge at A does not exert any axial thrust, determine
(a) The tension in the rope,
(b) The reactions at A and B.
