Question

Мост длиной 475 метров поезд проходит за 45 секунд С какой же скоростью он проходит мимо дежурной станции за 20 секунд Найдите скорость поезда Найдите длину поезда

Answer 1

Скорость поезда равна (475м/45сек)*4/3
Длина поезда равна ((475/45)*4/3)*20сек
П.С. сам(а) посчитаешь:)

Answer 2

Calculation of Train Speed

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

Speed = Distance / Time

Given that the length of the bridge is 475 meters and the train passes it in 45 seconds, we can calculate the speed as follows:

Distance = 475 meters Time = 45 seconds

Using the formula, we have:

Speed = 475 meters / 45 seconds

Calculating this, we find that the speed of the train is approximately 10.56 meters per second.

Calculation of Train Length

To find the length of the train, we can use the formula:

Length = Speed x Time

Given that the train passes the station in 20 seconds, we can calculate the length as follows:

Speed = 10.56 meters per second Time = 20 seconds

Using the formula, we have:

Length = 10.56 meters per second x 20 seconds

Calculating this, we find that the length of the train is approximately 211.2 meters.

Therefore, the train is moving at a speed of approximately 10.56 meters per second and has a length of approximately 211.2 meters.

Please note that these calculations are based on the given information and assumptions.