Question

Пассажир едущий в железнодорожном вагоне заметил что встречный состав прошел мимо окна за 9 секунд . определите длину встречного состава если оба поезда двигались со скоростью 50 км в час

Answer 1

1620 метров ......,.....

Answer 2

Problem Analysis

A passenger in a train noticed that an oncoming train passed by the window in 9 seconds. We need to determine the length of the oncoming train if both trains were moving at a speed of 50 km/h.

Solution

To solve this problem, we can use the formula:

Length = Speed x Time

Given that both trains were moving at a speed of 50 km/h and the time taken for the oncoming train to pass by the window was 9 seconds, we can calculate the length of the oncoming train.

Calculation

First, we need to convert the speed from km/h to m/s, as the time is given in seconds.

Speed = 50 km/h = (50 x 1000) m/3600 s = 50000/3600 m/s ≈ 13.89 m/s

Now, we can calculate the length of the oncoming train using the formula:

Length = Speed x Time = 13.89 m/s x 9 s = 125.01 meters

Therefore, the length of the oncoming train is approximately 125.01 meters.

Conclusion

The length of the oncoming train, if both trains were moving at a speed of 50 km/h and the oncoming train passed by the window in 9 seconds, is approximately 125.01 meters.

Please let me know if there is anything else I can help you with!