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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 is$108km/hr-72km/hr=36km/=10m/s$Relative 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
```
2 years ago
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