MHT CET202015 Oct 2020Morning ShiftPhysicsLaws of MotionActual
A train has to negotiate a curve of radius 'r' m , the distance between the rails is ^ ^ m and outer rail is raised above inner rail by distance of ' h ^ m . If the angle of banking is small, the safety speed limit on this banked road is
Options
- Arg ( h )
- Brg h
- C( h )² r g
- D( rg h )²
Correct answer
A. rg ( h )
Step-by-step solution
mv ² r = R = mg v ²= gr v = gr = gr = g r [ For small angle of ]= gr h