Assertion: Mountain roads rarely go straight | vedclass

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(A) Both $Assertion$ and $Reason$ are true and $Reason$ is the correct explanation of $Assertion$. If mountain roads were to go straight up,the angle

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If both $Assertion$ and $Reason$ are correct and the $Reason$ is a correct explanation of the $Assertion$.

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(A) Both $Assertion$ and $Reason$ are true and $Reason$ is the correct explanation of $Assertion$. If mountain roads were to go straight up,the angle of inclination $	heta$ would be very large. The frictional force available to prevent slipping is given by $f = \mu mg \cos 	heta$. As $	heta$ increases,$\cos 	heta$ decreases,making the frictional force smaller. Due to this reduced friction,the vehicle's wheels would be more likely to slip. Furthermore,climbing a steep slope requires significantly higher engine power,which is impractical for most vehicles. Thus,roads are built with a winding path to reduce the effective slope.

$Assertion$: Mountain roads rarely go straight up the slope.
$Reason$: The slope of mountains is large,therefore there are more chances for a vehicle to slip from the roads.

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$Assertion$: Mountain roads rarely go straight up the slope. $Reason$: The slope of mountains is large,therefore there are more chances for a vehicle to slip from the roads.