Question

two trains A and B moving along parallel
tracks with the same velocity
in the same
direction .Let the velocity of each train
be 50 km h^-1 due east .Calculate the
relative velocities
of
the train.​

Answer 1

Answer:

Let the initial distance between two trains be x.

Distance travelled by train P.in 50 s:

= 20 50 + (1/2) 1 = 2250m

Distance travelled by train Q in 50s:

= 1000m

Now = 2250 - 1000 = 1250m. This distance must be equal to the initial distance between the trains plus the sum of the lengths of the two trains plus the sum of x + 800 = 1250 x = 450 m