Question

13. Two trains are each 50 m long moving parallel towards
each other at speed 10 m/s and 15 m/s respectively. At
what time will they pass each other:
2
(a) 5
(b) 4 sec
V 3
(c) 2 sec
(d) 6 sec ?
sec​

Answer 1

Explanation:

Two trains are each 50 m long moving parallel towards

each other at speed 10 m/s and 15 m/s respectively. At

what time will they pass each other:

2

(a) 5

(b) 4 sec

V 3

(c) 2 sec

(d) 6 sec ?

sec

Answer 2

Answer:

4 sec

Explanation:

the relative speed of each train with respect to each other be,V=10+15=25m/s

here the distance covered by each train =sum of their lengths=50+50=100m

time=100/25=4s

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