GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Railway tracks are banked on curves
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the train may not fly off in the opposite direction
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to avoid frictional force between the tracks and wheels
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necessary centrifugal force may be obtained from the horizontal component weight of the train
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necessary centripetal force may be obtained from the horizontal component of the weight of the train
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Explanation:
Detailed explanation-1: -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 out side to produce the necessary centripetal force required te keep train moving in a curved path.
Detailed explanation-2: -Forces Acting on the Track (a) Vertical loads consisting of dead loads, dynamic augment of loads including the effect of speed, the hammer blow effect, the inertia of reciprocating masses, etc. (b) Lateral forces due to the movement of live loads, eccentric vertical loading, shunting of locomotives, etc.
Detailed explanation-3: -The angle of banking for a railway track is given by ‘ theta =sin ^(-1)-YouTube.
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