PPSC - Inspector - Excise & Taxation Additional Directorate - 0000
Railway tracks are banked on curves?
- A. necessary centrifugal force may be obtained from the horizontal component weight of the train
- B. to avoid frictional force between the tracks and wheels
- C. necessary centripetal force may be obtained from the horizontal component of the weight of the train
- D. the train may not fly off in the opposite direction