A block of mass \( M \) is hung by ropes as shown in the following figure. The system is in equi...

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A block of mass \( M \) is hung by ropes as shown in the following figure. The system is in equilibrium. The point \( O \) represents the knot, the junction of the three ropes. Which of the following statements is true concerning the magnitudes of the three forces in equilibrium?
(A) \( F_{1}=F_{2}=F_{3} \)
(B) \( F_{2}F_{3} 3 \)
(C) \( F_{2}=2 F_{3} \)
(D) \( F_{1}=F_{2}=F_{3} / 2 \)
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