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Banking Of Road - Practice Questions & MCQ

Edited By admin | Updated on Sep 18, 2023 18:34 AM | #JEE Main

Quick Facts

  • Banking of Road is considered one the most difficult concept.

  • 12 Questions around this concept.

Solve by difficulty

A train is moving with a speed of 12 m/s on rails which are 1.5 m apart. To negotiate a curve of radius 400 m, the height by which the outer rail should be raised with respect to the inner rail is (Given, g=10 m/s2 )

A car of 800 kg is taking turn on a banked road of radius 300 m and angle of banking 30. If the coefficient of static friction is 0.2 then the maximum speed with which the car can negotiate the turn safely: (g=10 m/s2,3=1.73)

A car of mass m is moving on a concave bridge of radius r with velocity v as shown in the diagram for what value of the reaction on the car by the bridge will be maximum. 

Where θ is the angle made by a vertical line 

Concepts Covered - 1

Banking of Road
  1. Without friction

 

From figure

Rcosθ=mgRsinθ=mv2rtanθ=v2rgtanθ=ω2rg=Vωg=hl h= height of outer edge from the ground level l= width of the road r= radius 
 

  1.  If friction is also present

V2rg=μ+tanθ1μtanθ


Where θ= angle of banking
μ= coefficient of friction
V= velocity
Maximum speed on a banked frictional road

V=rg(μ+tanθ)1μtanθ
 

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Banking of Road

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