Question

Сколько времени пассажир , сидящий у окна поезда, идущего со скоростью 54 км\ч будет видеть проходящий мимо него встречный поезд сс скоростью 36 км\ч длина второго-150 м

Answer 1

54+36=90 км/ч общая скорость250м=0,25 км(0,25км/90км/ч) *360=10 секундОтвет:10 сек 

Answer 2

Calculation of the Time

To calculate the time it takes for a passenger sitting by the window of a train traveling at a speed of 54 km/h to see a passing train with a speed of 36 km/h and a length of 150 m, we can use the formula:

Time = Distance / Relative Speed

The relative speed is the difference between the speeds of the two trains.

Let's calculate the time:

1. Convert the speeds to m/s: - Speed of the first train: 54 km/h = 54 * (1000/3600) m/s = 15 m/s - Speed of the second train: 36 km/h = 36 * (1000/3600) m/s = 10 m/s 2. Calculate the relative speed: - Relative speed = Speed of the first train - Speed of the second train = 15 m/s - 10 m/s = 5 m/s

3. Calculate the time: - Time = Distance / Relative Speed - Distance = Length of the second train = 150 m - Time = 150 m / 5 m/s = 30 seconds

Therefore, the passenger will see the passing train for approximately 30 seconds.