A force of F = 100 lb holds the 400-lb crate in equilibrium. Determine the coordinates (...

A force of F = 100 lb holds the 400-lb crate in equilibrium. Determine the coordinates (0, y, z) of point A if the tension in cords AC and AB is 700 lb each.

3-63. If the maximum allowable tension in cables AB and AC is 500 lb, determine the maximum height z to which the 200-lb crate can be lifted. What horizontal force F must be applied? Take y = 8 ft.