A) \[0.7\times \sqrt{2}\times \frac{1}{\sqrt{3}}N\]
B) \[0.7\times \sqrt{3}\times \frac{1}{2}N\]
C) \[0.7\times \sqrt{3}N\]
D) \[0.7\times 2\times \frac{1}{\sqrt{3}}N\]
Correct Answer: B
Solution :
: \[F=\mu R=\mu mg\cos \theta \] \[F=0.7\times \frac{100}{1000}\times 10\times \cos 30{}^\circ =0.7\times \frac{\sqrt{3}}{2}N\]You need to login to perform this action.
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