Two trains started running from the same point at the same time in opposite directions (one towards north and other towards south). The speed of the two trains are 16 m/s and 14 m/s respectively. How much time will they take to be 378 km apart ? 3h 20min
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Answered by
3
To do the question follow the following steps.......
1. firstly do the conversion of unit of distance i.e., from km to m it would be 378000 m.
2. then find the relative velocity of train A with respect to B .. it would be velocity of A + velocity of B ..... i.e., 30 m/s
3. now find the time by applying the formula distance/velocity ...... it would come out to be 12600 seconds this when converted into hours comes out to be 3 hrs 20 min
Answered by
2
Explanation:
16 m/s + 14 m/s = 30 m/s
30 * 18/5 = 108 km/h
t = d/s
t = 378/108 = 3.5 hrs
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