Two trains go towards each other along parallel tracks. The speed of the first train is 40 km / h

bystudin | May 25, 2020 | Education

Two trains go towards each other along parallel tracks. The speed of the first train is 40 km / h, the speed of the second is 50 km / h. A passenger sitting on the second train noticed that the first train was passing him for 6 seconds. What is the length of the first train?

1) 40 + 50 = 90 (km / h) – approach speed
2) 90 km / h = 90,000 m / h = (90,000: 60) m / min = 1,500 m / min = (1,500: 60) m / s = 25 m / s;
3) 25 ◦ 6 = 150 (m) – the length of the first train
Answer: 150 meters

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.