A) \[1:1\]
B) \[1:3\]
C) \[\sqrt{3}:1\]
D) \[1:\sqrt{3}\]
Correct Answer: B
Solution :
[b] \[AB=l,\text{ }AD=A\text{ }cos30{}^\circ =l~cos30{}^\circ \text{ }cos30{}^\circ \] \[BD=BC\text{ }cos60{}^\circ =l~cos60{}^\circ \text{ }cos60{}^\circ \] \[{{W}_{1}}(AD)={{W}_{2}}(BD)\Rightarrow \frac{{{W}_{1}}}{{{W}_{2}}}=\frac{1}{3}\]You need to login to perform this action.
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