InterviewSolution
Saved Bookmarks
| 1. |
24.A 120 m long train is moving in a directionwith speed 20 m/s. A train B moving with30 m/s in the opposite direction and 130 mlong crosses the first train in a time. |
|
Answer» The total length of two trains = 120 m + 130 m = 250 m The two trains will cover a distance of 250 m to totally cross each other. The speed of the two trains in this problem must be added together. VAB = VA + VB VAB = 20 m/s + 30 m/s = 50 m/s The total time = total distance / total speed The total time = 250 m / 50 m/s = 5.0 seconds The two trains will totally cross each other after 5.0 seconds. Like my answer if you find it useful! |
|