Question

A train 108 metre long is moving at a speed of 50 km/hr. it crosses a train 112 metre long coming from opposite direction in 6 seconds. what is the speed of the second train?

Answer 1

Hii..
Here is your answer..

Solution:-
Total distance=108m+112m
$= > 220m$
Time =6s
Relative speed=
$= > \frac{distance}{time}$
$= > \frac{220}{6}$
$= > \frac{110}{3} m \: per \: sec$
It is in m/s in order to convert it in km/h we'll multiple it by 18/5
$= > \frac{110}{3} \times \frac{18}{5}$
$= > 132km \: per \: hrs$
Now,
A/q
50+Speed of 2nd train=132km/h
Speed of second train=
$= > 132 - 50 \\ = > 82$
Hence,
Speed of second train is 82km/h

Hope it helps uh...✌️✌️✌️