two trains, a and b, are moving towards each other. train a is 150 meters long and is running at a speed of 300 m/s; train b is 110 meters long and is running at a speed of 180 m/s. how much time would the longer train take to cross the shorter one?
Answers
Answer:
0.5seconds
Explanation:
L1=150,L2=110.
V1=300m/s,V2=180m/s.
from relative velocity
total velocity of trains=180+300=480.
total length of the trains=110+150=260
so the trains will cover 260meters with 480m/s speed
time taken =260/480=0.5seconds
Given : 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 a speed of 180 m/s.
To find : How much time would the longer train take to cross the shorter one?
Solution:
Total Distance to be covered = Length of both trains
= 150 + 110
= 260 m
Both Trains are running towards each other hence relative speed
= Speed of both trains
= 300 + 180
= 480 m/s
Time = Distance//Speed
=> Time = 260/480
=> Times = 0.54 sec
None of the given option are correct
Time taken by longer train take to cross the shorter one is 0.54 sec
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