Question

Two trains are running in opposite directions at the speed of 25 km/h and 35 km/h and 35 km/h. If the lengths of the trains are 185 m and 215 m respectively.

a. Find the time taken to pass each other

b. If they are moving in the same direction, how long will they take to pass each other?
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Please explain in step by step.​

Answer 1

Answer:

Distance = (350+250)m = 600 m

Relative speed =(42+30)km/hr

=72km/hr

=

60×60

(72×1000)

m/s

=20 m/s

Time = distance/speed

=

20

600

s

=30 s