Consider the truss shown in Figure QA2. It has a mass of 2.439 kg applied at joint "D" and a mass of 1.0 kg applied at joint "F". The truss has six load cells attached to the struts, as depicted in Figure QA2 by the black rectangles 1-6.The struts are connected through hinges at the joints. (a) Construct the Free Body Diagram (FBD) for the entire truss in Figure QA2. (b) Calculate the equivalent system Force-Moment at point "D" and calculate the reactions at the supports. (c) By using the method of sections, calculate the forces in the struts with theload cells (1-6) attached. (d) Provide a short discussion of the experimental laboratory for the truss in Figure QA2 (half a page maximum) and compare your analytical results at load cells (1-6) with the experimental measurements for the loading cased epicted in Figure QA2.