N C b B x a A y C Add three forces, A, B, and C,...

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N C b B x a A y C Add three forces, A, B, and C, in above figure (not in scale) with given a = 5 ft, b = 4 ft, c = 6 ft, A = 40 lb, B = = 78.9741 lb, and C and 60 lb, R = ( i+ .j+ k) lb N C b B x a A y C Add three forces, A, B, and C, in above figure (not in scale) with given a = 5 ft, b = 4 ft, c = 6 ft, A = 40 lb, B = = 78.9741 lb, and C and 60 lb, R = ( i+ .j+ k) lb