Two trains and A
B moving with
speed of 32 kmph and 72 kmph respectively
in opposite
direction. A
man sitting
in train
A
moving
in opposite direction
with
the speed
1.8 kmph. The speed of
man
as
seen from
train B.
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Answer:
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Explanation:
when trains are running in same direction then relative relative speed =54−36=18km/hr=(18×
18
5
)m/sec=5m/sec
Time =30s
Length of the faster train=5×30=150m
When trains are running in opposite direction then relative speed =54+36=90km/hr=(90×
18
5
)m/sec=25m/sec
time=10 s
Length of the trains=25×10=250m
Length of the slower train=250−150=100m
Length of the trains are 100 m and 150 m.
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