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Write a note on banking of roads....

Write a note on banking of roads.

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What curved roads are banked horizontal component of normal reaction of the road provides the necessary centripetal force to move the vehicle along the curved path . This reduces wear and tear of the tyres .
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The angle of banking of the road does not depend upon

Assertion : Improper banking of roads causes wear and tear of tyres. Reason : The necessary centripetal force is provided by the force of friction between the tyres and the road.

Assertion : As the frictional force increases, the safe velocity limit for taking a turn on an unbanked road also increases. Reason : Banking of roads will increase the value of limiting velocity.

What is banking of roads ? Why is it essential ? Derive the equation for the angle of banking ignoring friction between the tyres and the road.

A : Banking of roads reduces the wear and tear of the tyres of automobiles. R : By banking of the roads one component of the normal reaction on the automobile contributes to necessary centripetal force.

Why are the curved roads banked ? Obtain an expression for angle of banking of a curved road .

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