A trains running in the same direction at 40 kmph and 22 kmph completely pass each other in 1 minute. If the length of first train is 125 m, then find the length of the 2 nd train?
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relative speed of the train = (40-22) =18 kmph
18 kmph = 18×5/18 = 5 m/s
length of second train be d
while overtaking, total distance will have to cover =( d+125) m
time = 60 sec
∴(d+125) =60×5 = 300
⇒d= 175 m
18 kmph = 18×5/18 = 5 m/s
length of second train be d
while overtaking, total distance will have to cover =( d+125) m
time = 60 sec
∴(d+125) =60×5 = 300
⇒d= 175 m
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