A train 750m long travelling at 45 km/hr takes 72 sec to cross another train travelling in the opposite direction at 562 km/hr find the length of the second train
Answers
Answered by
7
Relative speed of the two trains
= (48+42)×518=25(48+42)×518=25m/s
Distance travelled in 12 sec. at 25 m/s =25×1225×12= 300 m
Length of first train =300×23300×23 =200m
Distance travelled by first train in 45 seconds
=48×518×4548×518×45=600m
Length of the platform = 600−200=400
600−200=400 metres
= (48+42)×518=25(48+42)×518=25m/s
Distance travelled in 12 sec. at 25 m/s =25×1225×12= 300 m
Length of first train =300×23300×23 =200m
Distance travelled by first train in 45 seconds
=48×518×4548×518×45=600m
Length of the platform = 600−200=400
600−200=400 metres
Answered by
3
answer will be 400 metres
Similar questions