The signboard truss is designed to support a horizontal wind load of 500 lb. If the resultant of this load passes through point C, calculate the forces in members BG and BF. The forces are positive if in tension, negative if in compression. 500 lb Answers: BG= i 29 BF = i B E 6' G -6' 3' 5' 5' in lb lb

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Types of loading

In mechanical terminology, the term load indicates that external force/weight, either constant or variable, acts on a mechanical member/structure. The weight of an object of a specific material is also an external load, and the external force that works on a structure comes under the categories of loading. The external load generates its effects as stress and strain in the structure.