For a body moving in a circular path, a condition for no skidding if $\mu $ is the coefficient of friction, is
A$\frac{{m{v^2}}}{r} \leq \mu mg$
B$\frac{{m{v^2}}}{r} \geq \mu mg$
C$\frac{v}{r} = \mu g$
D$\frac{{m{v^2}}}{r} = \mu mg$
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A$\frac{{m{v^2}}}{r} \leq \mu mg$
a $\mu \mathrm{mg} \geq \frac{\mathrm{mv}^{2}}{\mathrm{r}}$ if path is totally horizontal.
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$Assertion$ : There is a stage when frictional force is not needed at all to provide the necessary centripetal force on a banked road.
$Reason$ : On a banked road, due to its inclination the vehicle tends to remain inwards without any chances of skidding.
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