Two trains 14

Two trains running in the same direction at 40kmph and 22kmph completely pass one another in 1 minute. If the length of the first train is 125m, find the length of the 2nd train.

Correct answer:

b =  175 m

Step-by-step explanation:

v1=40 km/h m/s=40:3.6  m/s=11.11111 m/s v2=22 km/h m/s=22:3.6  m/s=6.11111 m/s t=1 min s=1 60  s=60 s a=125 m  v=v1v2=11.11116.1111=5 m/s  v = ts = ta+b  v t = a+b  b=v ta=5 60125=175 m



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