1.The magnitudes IFaI = 40 N and |Ea + Eg| = 80 N. The angle a = 60°. Graphically determine the…

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1.The magnitudes IFaI = 40 N and |Ea + Eg| = 80 N. The angle a = 60°. Graphically determine the magnitude of Fa

2. The magnitudes |E^| = 100 lb and |Eg| = 140 lb. The angle a = 40°. Use trigonometry to determine the magnitude of the sum of the forces E = Fa + Eg and the angle between Eg and Strategy: Use the laws of sines and cosines to analyze the triangles formed by the parallelogram rule for the sum of the forces as we did in Example 2.1. The laws of sines and cosines are given in Section A.2 of Appendix