Question

Два зустрічні потяги проходять один повз одного зі швидкостями 48 км/год і 60 км/год відповідно. Пасажир першого потяга помітив, що другий потяг пройшов повз його вікно за 10 с. Яка довжина другого потяга? ------------------------------------------------------------- Решите пожалуйсто, с обьяснениями, с дано и найти

Answer 1

Так так они  идут на встречу один другому,то их скорости прибавляются
V1+v2=l/t  км/час переведем в м/с 108 км/час=30 м/с
l=V*t=30*10=300м
Я тож с Украины ,с Днепропетровска .Если что ,земляк ,обращайся :)

Answer 2

Problem Analysis

We are given two trains passing each other. The first train has a speed of 48 km/h, and the second train has a speed of 60 km/h. The passenger in the first train notices that the second train passes by his window in 10 seconds. We need to find the length of the second train.

Solution

To solve this problem, we can use the formula:

Distance = Speed × Time

Let's assume the length of the second train is 'x' meters.

The relative speed of the two trains is the sum of their speeds, as they are moving in opposite directions:

Relative Speed = Speed of First Train + Speed of Second Train

Given that the speed of the first train is 48 km/h and the speed of the second train is 60 km/h, we can convert these speeds to meters per second by dividing by 3.6:

Speed of First Train = 48 km/h = (48 × 1000) m/3600 s = 13.33 m/s Speed of Second Train = 60 km/h = (60 × 1000) m/3600 s = 16.67 m/s

The time taken for the second train to pass the first train is given as 10 seconds.

Using the formula Distance = Speed × Time, we can calculate the distance traveled by the second train in 10 seconds:

Distance = Relative Speed × Time Distance = (13.33 m/s + 16.67 m/s) × 10 s

Now, we can substitute the values and solve for the distance:

Distance = (13.33 + 16.67) × 10 = 300 meters

Therefore, the length of the second train is 300 meters.

Answer

The length of the second train is 300 meters.

Explanation

When two trains pass each other, the distance traveled by the second train in the time it takes to pass the first train is equal to the sum of their lengths. In this case, the second train passes the first train in 10 seconds, and the distance traveled by the second train is 300 meters. Therefore, the length of the second train is 300 meters.