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Grade: 11

                        

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.

2 years ago

Answers : (1)

Eshan
askIITians Faculty
2095 Points
							Dear student,

When overtaking, relative velocity is108km/hr-72km/hr=36km/=10m/s
Relative length to cross=110m+90m=200m
Hence time to overtake=20s

Relative speed when crossing=108km/hr+72km/hr=180km/hr=50m/s
Hence time to overatake=4s
2 years ago
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