An unbanked circular highway curve on the level ground makes a turn of `90^(@)`. The highway carries traffic at `"108 km h"^(-1)`, and the centripetal force on a vehicle is not to exceed `(1)/(10)` of its weight. What is the approximate minimum length of he curve, in km?

vA train runs along an unbanked circular track of radius 30 m at a speed of 54 km/h. The mass of the train is 10^6 kg. What provides the centripetal force required for this purpose — The engine or the rails ? What is the angle of banking required to prevent wearing out of the rail ?

A train runs along an unbanked circular track of radius 30 m at a speed of 54 km/h. The mass of the train is 10^(6) kg. What provides the centripetal force required for this purpose - The engine or the rails ? What is the angle of banking required to prevent wearing out of the rail ?

A train runs along an unbanked circular track of radius 30 m at a speed of 54 km//h . The mass of the train is 10^6 kg . What provides the centripetal force required for this purpose — Hie engine or the rails ? What is the angle of banking required to prevent wearing out of the rail ?

A train runs along an unbanked circular track of radius 30 m at a speed of 54 km /h . The mass of the train is 10^(6) kg . What provides the centripetal force required for this purpose - The engine or the rails ? What is the angle of banking required to prevnt wearing out of the rail ?

A train rounds an unbanked circular bend of radius 30 m at a speed of 54 km//h The mass of the train is 10^(6) kg What provides the centripetal force required for this purpose ? The engine or the rails ? What is the angle of banking required to prevent out the rails ?

A train rounds an unbanked circular bend of radius 30 m at a speed of 54 km//h . The mass of the train is 10^(6) kg. What provides the centripetal force required for this purpose - The engine or the rails ? What is the angle of banking required to prevent wearing out the rails ?