Question

Грузовой поезд проехал 420 км. сделав остановку на одной станции. путь до этой станции занял 4 часа при скорости 80км в час. весь оставшийся путь занял 2 часа. с какой скоростью поезд двигался после остановки? решение

Answer 1

1)80*4=320км-до станции.
2)420-320=100км-оставшийся путь.
3)100:2=50км\ч-скорость оставшегося пути.

Answer 2

Solution:

To find the speed of the train after the stop, we can use the formula:

Speed = Distance / Time

First, let's calculate the distance to the station and the time taken to reach the station.

The distance to the station is 420 km, and it took 4 hours to cover this distance at a speed of 80 km/h.

So, the speed before the stop was 80 km/h.

The remaining distance after the stop is 420 km, and it took 2 hours to cover this distance.

Now, we can calculate the speed of the train after the stop using the formula:

Speed = Distance / Time

Calculation:

- Distance after the stop = 420 km - Time taken after the stop = 2 hours

Speed = 420 km / 2 hours = 210 km/h

So, the speed of the train after the stop was 210 km/h.

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