Two trains A and B are running at the same speed. Train A is 180m long and it crosses a pole in 7.2s. If train B takes 4s to cross the pole, find it's length.
Answers
Answered by
0
Step-by-step explanation:
Given : V
M
=5 km/hr
Length of the train L=100m=0.1km
Time taken by the train to cross the man t=7.2 s =
3600
7.2
hr
Let the velocity of train be V
T
in opposite direction to that of man.
∴ Velocity of train w.r.t man V
TM
=V
T
+V
M
=V
T
+5 km/hr
Now L=V
TM
t
∴ 0.1=(V
T
+5)×
3600
7.2
⟹V
T
=45 km/hr
Answered by
0
Step-by-step explanation:
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