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Railway tracks are banked on curves | |
A. | necessary centrifugal force may be obtained from the horizontal component weight of the train [Wrong Answer] |
B. | to avoid frictional force between the tracks and wheels [Wrong Answer] |
C. | necessary centripetal force may be obtained from the horizontal component of the weight of the train [Correct Answer] |
D. | the train may not fly off in the opposite direction [Wrong Answer] |