Turn in at beginning of lecture Tuesday, Sept. 18. 6h. A transmission tower is held by three guy wires attached to a pin connection at A. The tension in cable AC is 920 lb and is distributed as FACx = +240 lb, FACy=-780 lb, and FACz = +520 lb. Determine the forces in AB, AD and the tower, P. (Note that the FBD is already drawn for you)
Please solve all the questions.
120 N Question No. 1: A 120-N force is applied to the control rod AB as shown. Knowing that the length of the rod is 0.6 m: 1. Determine the moment of the force about point B by resolving the force into: a. components along AB and in a direction perpendicular to AB. b. horizontal and vertical components. 2. Determine the horizontal force at A which creates the same moment. Question No. 2: Knowing that...
2.87
Problems55 the magnitsde and direction of the force F 2.81 A force acts at the origin of a coordinate system in a direction l by the angles 869.3 and e 57.9. Knowing that the y compo- nent of the force is -174.0 lb, determine (a) the angle ,, (b) the o components and the magnitude of the foree. 2.82 A force acts at the origin of a coordinate system in a direction defined by the angles &-70.9 and &-144.9....