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Two trains AR running on parellel track with speed of 72km/hr. And 108km/hr are respectively the length of trains are 110m and 90m. Find time for overtake and time for crossing each other. Two trains AR running on parellel track with speed of 72km/hr. And 108km/hr are respectively the length of trains are 110m and 90m. Find time for overtake and time for crossing each other.
Dear student,When overtaking, relative velocity isRelative length to cross=110m+90m=200mHence time to overtake=20sRelative speed when crossing=108km/hr+72km/hr=180km/hr=50m/sHence time to overatake=4s
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