A) \[\frac{m{{v}^{2}}}{r}\le \mu mg\]
B) \[\frac{m{{v}^{2}}}{r}\ge \mu mg\]
C) \[\frac{v}{r}=\mu g\]
D) \[\frac{m{{v}^{2}}}{r}=\mu mg\]
Correct Answer: A
Solution :
The value of frictional force should be equal or more than required centripetal force,\[~ie,\]\[\mu mg\ge \frac{m{{v}^{2}}}{r}.\]
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