A train 100 m long is to cross a river bridge of length 800m. What time will it take to cross the bridge? Given the train moves with a constant speed of 36m/s.

Question

A train 100 m long is to cross a river bridge of length 800m. What time will it take to cross the bridge?  Given the train moves with a constant speed of 36m/s.

oobleck · Answer

time = distance/speed time for the engine to get across: 800m ÷ 36m/s = _____ s add to that the time for the rest of the train to cross: 100m ÷ 36 m/s = ____ s

Anonymous · Answer

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