Solution Prob. 2–9 Engineering Mechanics Statics R.C Hibbeler 14th

If the resultant force acting on the support is to be 1200 lb, directed horizontally to the right, determine the force F in rope A

Prob. 2–9

2-9. If the resultant force acting on the support is to be 1200 lb, directed horizontally to the right, determine the force F in rope A and the corresponding angle θ.

prob. 2-9 R.C Hibbeler

SOLUTION

Diagram Benda Bebas (DBB)

Prob. 2–9

Ans

Parallelogram Law. The parallelogram law of addition is shown in Fig. a,
Trigonometry. Applying the law of cosines by referring to Fig. b,

Prob. 2–9



Ans:
F = 616 lb
θ = 46.9


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