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8 N 7 virtual work truss and frame thod of Virtual Work: Trusses 1 of 6 Part B-Vertical dsplacement sing the method of virtual work. Use the method of virtual work to determine the vertical displacement of joint E due to the applied loads. Let a positive answer represent an upward displacement and a negative answer regresent a downward displacement The principle of virtual work, also referred to as the unit- load method, provides a method for determining the slope or displacement at a specific point in a structure. Express your answer in the appropriate units to three significant figures igure 1 of 1 6 m Part C - Change in temperature 6 m Of ?? 25 °C The
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