Asked by tiana

two metra trains are on separate but parallel tracks. One has a speed of 90 km/hr, the other 80 km/hr. Initially, the two trains are 2.71 km apart. How long will it take the two trains to pass each other?
Answered by Elena
(v1+v2)t=s
t=s/(v1+v2)=2.71/170=0.016 h= 57.4 s.
Answered by 11
57 seconds
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