train A of length 120 m moving with a velocity 20 m/s is about to cross another train B of length 130 m moving towards it from opposite direction with a speed of 30 m/s then find the time duration which the trains would cross each other
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Answered by
20
here train has to travel a distance of sum of lengths of the trains i.e., 120+130=250m
given they are moving in opposite direction. Hence speeds will be added i.e., 20+30=50
now we know d = st
250=50*t
from this we get t=5 sec which is time taken by trains to cross each other.
Answered by
8
Answer:
5 Seconds
Step-by-step explanation:
When they cross each other and lie with both their backs at a common point their total length is 130+ 120 = 250m
Similarly both their velocities are 20+30=50m/s
As Speed = Distance/ Time
Time=250/50
= 5 seconds
Which also happens to be your answer
DO mark as Brainliest if you don't mind
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