By using the Macauly Method The system consists of a movable hoist trolley holding the lifting cable and hook. The horizontal beam is held in position by 2 vertical posts. The beam is made from alloy steel grade material. Given the size of this gantry crane, the weight of the machine component (load) it can handle ranges from 5,000 to 10,000 kg.The movable hoist trolley holding the lifting cable and hook weighs 500kg/m. The weight of the beam can be calculated from the material selected.The maximum allowable beam deflection design is 3 cm. Using the dimension of 2 possible beam used as in. FIND THE safety of the beam using a suitable theories of failure (you can select the most appropriate point in your calculation)The weight of rod and hook can be neglected. You may use any suitable assumptions (such assupport type and load, boundary condition, safety factor, etc) needed in your calculation. State the assumptions clearly in your report