A hand operated mechanism called a windless utilizes a crank to rotate a drum for lifting a weight of W = 40 N, as shown in the figure below. The shaft of the mechanism is supported by a wall mounted ball and socket joint at point A and a smooth journal bearing at point B. The arm and handle of the crank lies in the y-z plane in the position shown, and the drum has a diameter D = 0.25 m. The distances are given as L1 = 0.5 m, L2 = 0.45 m, L3 = 0.15 m, L4 = 0.6 m, L5 = 0.15 m. Determine the force F required to hold the weight in equilibrium for this position of the crank handle. Also determine the support reactions at points A and B. Assume the journal bearing only exerts force reactions on the shaft (i.e. ignore moment reactions at B). Note: Express answers as magnitudes only and ignore signs/directions. Z A Diam. D X L1 B L 2 W L3 y L4 L5 F\f