Question

explain banking of roads with expration​

Answer 1

$\bold {\huge {Answer :-}}$

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✭Banking of Roads✭

⇨ Banking of road is the process of raising outer edges of a road over its inner edge through certain angle.

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Necessity of banking of road→

➛When a vehicle moves on a curved horizontal surface, friction force between wheels and road provides the necessary centripetal force. But friction force is enough sometimes like during rain as road is oily.

➛Road should be made through then but it cause wear & tear of tyres. When centripetal force is less the vehicle skid. To eliminator this difficulty, roads are banked.

➛When road is banked, the horizontal component of normal reaction provides necessary centripetal force required for circular motion.

So, roads are banked to provide necessary centripetal force

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✭Expressions✭

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Maximum speed of vehicle on banked road→

$\bf\huge\boxed{V_{max}= \sqrt{\frac{\mu_s+tan\theta}{1-\mu_stan\theta}Rg}}$

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Minimum speed of vehicle on banked road→

$\bf\huge\boxed{V_{min}= \sqrt{\frac{tan\theta-\mu}{1+\mu\:tan\theta}Rg}}$

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Answer 2

✭Banking of Roads✭⇨

Banking of road is the process of raising outer edges of a road over its inner edge through certain angle.⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯

Necessity of banking of road→

➛When a vehicle moves on a curved horizontal surface, friction force between wheels and road provides the necessary centripetal force. But friction force is enough sometimes like during rain as road is oily.

➛Road should be made through then but it cause wear & tear of tyres. When centripetal force is less the vehicle skid. To eliminator this difficulty, roads are banked.

➛When road is banked, the horizontal component of normal reaction provides necessary centripetal force required for circular motion.So, roads are banked to provide necessary centripetal force⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯

Hope it helps ✨