Question
Determine the smallest force $F$ that must be applied along the rope in order to cause the curved rod, which has a radius of $4 \mathrm{m},$ to fail at the support $A$. This requires a moment of $M=1500 \mathrm{N} \cdot \mathrm{m}$ to be developed at $A$.
Step 1
For RAB, we have: \[ RAB = 4\sin(45)i - 0j - 0k = 2.82i - 1.17k \] For RAC, we have: \[ RAC = 6i + 6j - 4k \] For RPC, we have: \[ RPC = (6 - 4\sin(45))i + 6j - 4\cos(45)k = 3.17i + 6j - 2.82k \] Show more…
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