2. In Gothic structures, builders used very heavy pinnacles to redirect the line

Question

2. In Gothic structures, builders used very heavy pinnacles to redirect the line of thrust (force) downward toward the ground. Without the added weight of the pinnacle, the structure would fail. What is the required magnitude of the weight, W, such that the resultant force is oriented 20 degree CW from vertical as shown below? Use the graphical method to construct a force triangle (also given below). The applied force from the arch. P = 15.0 kips. A) 7.30 kips B) 8.38 kips C) 6.85 kips D) 7.62 kips E) 16.5 kips

Explanation / Answer

16.5

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