Question

1. Two trains of length 150 m and 180 m respectively are running in opposite directions on parallel
tracks. If their speeds be 30 km/hr and 24 km/hr respectively. In what time will they cross each other?
2. When two trains were running in the opposite directions at 40 km/hr and 60 km/hr respectively, the
slower train passed a man sitting in the faster train in 9 seconds. Find the length of the slower train?
3. A train 220 m long travels at a speed of 60 km/hr. A man is running at a speed of 6 km/hr in the
direction opposite to that of the train. In how many seconds, the train will cross the man.
4. A cyclist 'A' started his journey on a cycle at 8:30 a.m. at a speed of 8 km/hr. Another cyclist 'B' started
from the same point half an hour later but with a speed of 10 km/hr. At what time did B overtake A?
5. A train 100 m long passes another train coming from opposite direction in 9 seconds. If their speeds
be 38 km/hr and 34 km/hr respectively. Find the length of the other train
15. A train 210 m long travelling at 90 km/hr overtook another train travelling in the same direction at 72
km/hr and passes it completely in 55 seconds. What was the length of the second train?​

Answer 1

Answer:

1) the two trains travel total distance = 150 + 180 = 330 (m) the two trains have relative velocity w.r.t. each other = (50 + 58)*1000/3600 = 30 (m/s)

2) the green pic is your second answer