Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.

Use Coupon: CART20 and get 20% off on all online Study Material

Total Price: Rs.

There are no items in this cart.
Continue Shopping

bankimg of roads problems related to pulley

bankimg of roads

problems related to pulley


1 Answers

879 Points
11 years ago

Dear shilpa,

Banking of Roads:

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 banking of roads 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:

To avoid friction outer part of road is some what lifted compared to the inner part.

  Fig (29)

From figure (29) NSin =  and NCos = mg

 From this we get, Tan =

At two speeds car does not slide down even if track is smooth.


Please feel free to ask your queries here. We are all IITians and here to help you in your IIT JEE preparation.

All the best.

Win exciting gifts by answering the questions on Discussion Forum. So help discuss any query on askiitians forum and become an Elite Expert League askiitian.

Now you score 5+15 POINTS by uploading your Pic and Downloading the Askiitians Toolbar  respectively : Click here to download the toolbar..


Askiitians Expert

Sagar Singh

B.Tech, IIT Delhi

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy


Get your questions answered by the expert for free