A) \[sin\,\,\alpha \]
B) \[\cos \,\,\alpha \]
C) \[\tan \,\,\alpha \]
D) None of these
Correct Answer: C
Solution :
As block is moving with constant speed, So, \[\operatorname{F} =\,\,{{f}_{r}}\] \[\operatorname{mg}\,\,sin \alpha = \mu \,mg\,\,cos \alpha \] \[\Rightarrow \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\mu = tan \alpha \]You need to login to perform this action.
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