Question

в 7 часов вечнра из города выехал товарный поезд со скоростью 59 км/ч, а через два часа из того же города, но противоположном напрвлении выехал скорый поезд со скоростью 112 км/ч. На каком расстоянии друг от друга окажутся поезда в полночь?

Answer 1

Ответ:

Пошаговое объяснение:

24-19=5 часов ехал тов.поезд

5-2=3часа ехал скорый поезд

S=vt

59×5=295 км проехал тов.поезд за 5 часов

112×3=336км проехал скорый поезд за 3 часа

295+336=631км будет расстояние между ними в полночь

Answer 2

Ответ:

631 км

Пошаговое объяснение:

1. До полуночи товарный поезд проследует

24 - 19 = 5 (ч).

2. 59 • 5 = 295 (км) пройдё товарный поезд до полуночи.

3. 5 - 2 = 3 (ч) - время движения скорого поезда.

4. 112 • 3 = 336 (км) в своём направлении прошёл скорый поезд до полуночи

5. 295 + 336 = 631 (км) - расстояние между поездами в полночь.

Answer 3

Problem Analysis

We have two trains traveling in opposite directions. The first train departs from a city at 7:00 PM with a speed of 59 km/h, and the second train departs from the same city in the opposite direction two hours later at 9:00 PM with a speed of 112 km/h. We need to determine the distance between the two trains at midnight.

Calculation

To find the distance between the two trains at midnight, we need to calculate the distance traveled by each train from their respective departure times to midnight.

The first train departs at 7:00 PM and travels for 5 hours until midnight (7:00 PM to 12:00 AM). The distance traveled by the first train can be calculated using the formula:

Distance = Speed × Time

Distance of the first train = 59 km/h × 5 hours

The second train departs at 9:00 PM and travels for 3 hours until midnight (9:00 PM to 12:00 AM). The distance traveled by the second train can be calculated using the same formula:

Distance = Speed × Time

Distance of the second train = 112 km/h × 3 hours

To find the total distance between the two trains at midnight, we add the distances traveled by each train.

Total distance between the two trains at midnight = Distance of the first train + Distance of the second train

Calculation Result

Let's calculate the distances:

Distance of the first train = 59 km/h × 5 hours = 295 km

Distance of the second train = 112 km/h × 3 hours = 336 km

Total distance between the two trains at midnight = 295 km + 336 km = 631 km

Therefore, the two trains will be approximately 631 kilometers apart at midnight.

Answer

The two trains will be approximately 631 kilometers apart at midnight.

Note: The calculation assumes that the trains maintain a constant speed throughout their journey and that there are no stops or delays.