A) \[\mu mg\]
B) \[\mu \left[ mg+\left( \frac{P}{2} \right) \right]\]
C) \[\mu \left[ mg-\left( \frac{P}{2} \right) \right]\]
D) \[\mu \left[ mg-\left( \frac{\sqrt{3}P}{2} \right) \right]\]
Correct Answer: C
Solution :
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