A) \[3:1:2\]
B) \[2:1:3\]
C) \[\sqrt{3}:1:2\]
D) \[2:1:\sqrt{3}\]
Correct Answer: D
Solution :
Since, the forces are in equilibrium position, they by Lami?s theorem, \[\Rightarrow \] \[\frac{P}{sin{{90}^{o}}}=\frac{Q}{\sin {{150}^{o}}}=\frac{R}{\sin \,{{120}^{o}}}\] \[\Rightarrow \] \[\frac{P}{1}=\frac{Q}{1/2}=\frac{R}{\sqrt{3}/2}\] \[\Rightarrow \] \[P:Q:R=2:1:\sqrt{3}\]You need to login to perform this action.
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