Q. 114.3( 3 Votes )

A train has to ne

Answer :

Here,

Speed = v = 48 km h–1


1 km = 1000 m


1 h = 3600 s





Let h be the height through which the outer rail must be raised with respect to the inner rail


Let θ be the angle of banking



For the small values of θ



We know,



Hence,







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