A) \[\frac{{{x}^{2}}}{2\mu R}\]
B) \[\frac{{{x}^{2}}}{3\mu R}\]
C) \[\frac{{{x}^{2}}}{\mu R}\]
D) None of these
Correct Answer: A
Solution :
Let it travel distance s. \[mgh=\int{\mu g\cos \theta .\,ds\approx \mu mgs}\] \[mgh=mg\left[ R-\sqrt{{{R}^{2}}-{{x}^{2}}} \right]=mg\frac{{{x}^{2}}}{2R}\] \[\therefore \] \[s=\frac{{{x}^{2}}}{2\mu R}\]You need to login to perform this action.
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