1.

Railway tracks are banked on curves so that

A. ecessary centrifugal force may be obtained from the horizontal component of the weight of the train
B. o frictional force may be produced between the tracks and the wheels of the train
C. ecessary centripetal force may be obtained from the horizontal component of the weight of the train
D. he train may not fall down inwards
Answer» D. he train may not fall down inwards


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