Two trains, A and B, are moving towards each other. Train Ais 150 meters long and is running at a speed of 300 m/s, Train Bis 110 meters long and is running at aspeed of 180 m/s. How much time would the longer train take to cross the shorter one?+10Options75 seconds60 seconds55 seconds65 seconds$ Clear AnswerAnswer SavedActivate
Answers
Answer:
Given :-
Two trains A which is 150 m long and train B which is 110 m long are moving towards each other at a speed of 300 m/s and 180 m/s respectively.
To Find :-
Time taken by the longer train (train A) to cross the shorter one (train B)
Solution :-
Since, the trains are moving towards each other,So the relative speed would be the sum of thier speeds.
⇒ Rel. Speed = 300 + 180
⇒ Rel. Speed = 480 m/s
To cross the shorter train, the longer train would have to travel its own length and the length of the shorter train because we are talking about crossing here, Hence train A should be ahead of train B
⇒ Distance travelled = 150 + 110
⇒ Distance travelled = 260 m
We know,
⇒ Distance = Speed × Time
⇒ Time = Distance / Speed
⇒ Time = 260 / 480
⇒ Time = 0.54
So, The longer train would take 0.54 seconds to cross the shorter train.
Answer:
Given :-
Two trains A which is 150 m long and train B which is 110 m long are moving towards each other at a speed of 300 m/s and 180 m/s respectively.
To Find :-
Time taken by the longer train (train A) to cross the shorter one (train B)
Solution :-
Since, the trains are moving towards each other,So the relative speed would be the sum of thier speeds.
⇒ Rel. Speed = 300 + 180
⇒ Rel. Speed = 480 m/s
To cross the shorter train, the longer train would have to travel its own length and the length of the shorter train because we are talking about crossing here, Hence train A should be ahead of train B
⇒ Distance travelled = 150 + 110
⇒ Distance travelled = 260 m
We know,
⇒ Distance = Speed × Time
⇒ Time = Distance / Speed
⇒ Time = 260 / 480
⇒ Time = 0.54
So, The longer train would take 0.54 seconds to cross the shorter train.