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A circular curve of a highway is designe...

A circular curve of a highway is designed for traffic moving at `72km//h`. If the radius of the curved path is `100m`, the correct angle of banking of the road should be given by `:`

A

`tan^(-1)``(2)/(5)`

B

`tan^(-1)``(3)/(5)`

C

`tan^(-1)``(2)/(5)`

D

`tan^(-1)``(1)/(4)`

Text Solution

Verified by Experts

The correct Answer is:
C
`V=sqrt(g R tan theta )rArr (20)^(2)=10xx100xxtan theta `
`rArr tan theta =(4)/(10)=(2)/(5)`
`rArr theta= tan ^(-1)(2//5) Ans : Non e`
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