1.

wo trains are each 50 m long moving parallel towardseach other at speeds 10 m/s and 15 m/s respectively, atwhat time will they pass each other?(a) 8 s(c) 2 s(b) 4 s(d) 6 s

Answer»

The velocity of 2nd train relative to first train is 15-(-10)=25m/s, when we say relative to first train then first train has to be considered stationary. With this picture second train has to travel 100 m with relative velocity of 25m/s. So, it will take 100/25=4s.



Discussion

No Comment Found

Related InterviewSolutions