1. $$\frac{{{\text{w}}{l^2}}}{{3\sqrt 3 }}$$
  2. $$\frac{{{\text{w}}{l^2}}}{{6\sqrt 3 }}$$
  3. $$\frac{{{\text{w}}{l^2}}}{{9\sqrt 3 }}$$
  4. $$\frac{{{\text{w}}{l^2}}}{{12\sqrt 3 }}$$
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1 Answers

Answer: Option 3

Let'

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