Question

Two trains are running at a speed of 50 km and 30 km per hour respectively in the same direction.the train running at 50 km/hr, crosses a man in other train in 18 seconds.find the length of the faster train.

Answer 1

Hii..
Here is your answer..

Solution:-
Relative speed is =
$= > 50 - 30 \\ = > 20km \: p \: h$
By converting it in m/s we get:-
$= > 20 \times \frac{5}{18} \\ = > \frac{50}{9} m \: per \: sec$
Now,
Distance=Speed ×Time
$= > \frac{50}{9} \times 18 \\ = > 100m$

Hence,
Length of train is 100m
Hope it helps uh...