45. 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
Solution: When a fast moving train takes a curved path, it tends to move away tangentially off the track. In order to prevent this, the curved tracks are banked on the outside to produce the necessary centripetal force required to keep the train moving in a curved path.
