A) \[\frac{2}{3}\tan \alpha \]
B) \[\frac{2}{7}\tan \alpha \]
C) \[\tan \alpha \]
D) \[\frac{5}{7}\tan \alpha \]
Correct Answer: C
Solution :
[c] \[\mu =\frac{F}{R}=\frac{mg\,\sin \,\alpha }{mg\,\cos \,\alpha }=\tan \,\alpha \]You need to login to perform this action.
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