Two trains 120 m and 80 m in length are running in two opposite direction with velocities 42 km/hr and 30 km/hr respectively.In what time they will completelycross each other. For the perfect answer i will mark brainliest.
Answers
Answered by
1
Answer:
The relative velocity in this case will be 42+30 as both the trains are running in opp direction. Also the distance needed to be traveled will be 120+80=200 m = 0.2 Km. Answer:the train will cross each other in 10 sec.
Answered by
0
Explanation:
You need to use the concept of relative velocity here. The relative velocity in this case will be 42+30 as both the trains are running in opp direction. Also the distance needed to be traveled will be 120+80=200 m = 0.2 Km.
Time = Distance/Speed = 0.2/72 = 0.0027 Hr = 10 Seconds
Similar questions