Statics and Dynamics Quiz
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A particle is subjected to nn concurrent forces in 3D. A student argues: "If all nn force vectors lie in a single plane, then the three equilibrium equations ∑Fx=0\sum F_x = 0, ∑Fy=0\sum F_y = 0, ∑Fz=0\sum F_z = 0 reduce to effectively two independent equations, so at most two unknown force magnitudes can be found."
Which of the following most precisely identifies whether the student's argument is correct, and why?
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