A railway track is banked for a speed v, by making the height of the outer rail h higher than that of the inner rail. The distance between the rails is d. The radius of curvature of the track is r

A railway track is banked for a speed v, by making the height of the o

1.	A railway track is banked for a speed v, by making the height of the outer rail h higher than that of the inner rail. The distance between the rails is d. The radius of curvature of the track is r
Answer» `(h)/(d)=(V^(2))/(rg)` `TAN("sin"^(1)(h)/(d))=(v^(2))/(rg)` `tan^(-1)((h)/(d))=(v^(2))/(rg)` `(h)/(r )=(v^(2))/(dg)` ANSWER :B