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```        The curved horizontal road is banked at an angle alpha. What will happen for vehicle moving along this road if (a) theta < alpha
(b) theta > alpha ? Where theta is angle of banking for the given road.
Thank You.```
6 years ago

SAGAR SINGH - IIT DELHI
879 Points
```										Dear student,
When vehicle go through turnings, they travel along a nearly circular  arc. There must be some force to produce the required centripetal  acceleration. Centripetal force is provided to the vehicle by following  three ways.

By friction only

By friction and banking of roads both.

1) By  friction:       Let a car of mass m is moving at a speed v is at horizontal circular arc  of radius r.        And fL=  limiting value of f = N = mg       (N=mg)For a  safe turn without sliding, So if m and r is fixed the speed of the vehicle  should not exceed and if v and r is fixed then coefficient of  friction should be greater than 2) By banking of  roads only.

All the best.
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Sagar Singh
B.Tech, IIT Delhi

```
6 years ago
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