Two trains are running at 40 km/hr and 20 km/hr respectively in the same direction. fast train completely passes a man sitting in the slower train in 5 seconds. what is the length of the fast train?
a.23 m
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☆heya your answer is here☆
Relative speed = (40 - 20) km/hr =20×5/18=50/9 m/sec
Length of faster train =50/9×5= 250/9= 27.7777777778 mtr
Relative speed = (40 - 20) km/hr =20×5/18=50/9 m/sec
Length of faster train =50/9×5= 250/9= 27.7777777778 mtr
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