please answer -

Asked by  | 14th Mar, 2009, 09:35: AM

Expert Answer:

Distance = length of train + length of bridge = 50 + x

Speed = 30 km/h = 30 x5/18 m/s

time = 36s

use speed = distance/time

Then solve for x

Answered by  | 16th Mar, 2009, 11:26: AM

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