Train a which is 80 metre in length passes a pole in 4 seconds. it takes 37 seconds to cross train b, which is 105 metre in length. find the speed of train b if both the trains are moving in the same direction.
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Length of the train =150=150 m
Speed of the man =2=2 km/hr
Relative speed =1503=50 m/s=1503=50 m/s
=50×185=180 km/hr=50×185=180 km/hr
Relative speed = Speed of train - Speed of the man (as both are moving in the same direction). Therefore,
Speed of the train = Relative speed + Speed of the man
=180+2=182 km/hr=180+2=182 km/hr
Speed of the man =2=2 km/hr
Relative speed =1503=50 m/s=1503=50 m/s
=50×185=180 km/hr=50×185=180 km/hr
Relative speed = Speed of train - Speed of the man (as both are moving in the same direction). Therefore,
Speed of the train = Relative speed + Speed of the man
=180+2=182 km/hr=180+2=182 km/hr
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