Question

Два поезда вышли одновременно навстречу друг другу из двух городов расстояние между которыми 600 км скорость первого поезда 65 км\ч скорость второго поезда 85 км \ч какое расстояние будет между поездами через два часа ? через какое время поезда встретятся ?

Answer 1

А ты вообще знаешь что такое расстояние скорость и время?

Answer 2

600-(85*2+65*2)=300км-расстояние между поездами через 2ч
600/(65+85)=4ч-через это время поезда встретятся

Answer 3

Problem Analysis

We have two trains traveling towards each other from two different cities. The distance between the cities is 600 km. The first train is traveling at a speed of 65 km/h, and the second train is traveling at a speed of 85 km/h. We need to find the distance between the trains after two hours and the time it takes for the trains to meet.

Distance between the Trains after Two Hours

To find the distance between the trains after two hours, we need to calculate the distance each train has traveled in two hours and then subtract that from the initial distance between the cities.

The distance traveled by the first train in two hours can be calculated using the formula: distance = speed × time. So, the distance traveled by the first train in two hours is: 65 km/h × 2 h = 130 km.

Similarly, the distance traveled by the second train in two hours is: 85 km/h × 2 h = 170 km.

To find the distance between the trains after two hours, we subtract the sum of the distances traveled by each train from the initial distance between the cities: Distance between the trains after two hours = 600 km - (130 km + 170 km).

Time for the Trains to Meet

To find the time it takes for the trains to meet, we can use the formula: time = distance / relative speed. The relative speed of the two trains is the sum of their individual speeds: 65 km/h + 85 km/h.

Now we can calculate the time it takes for the trains to meet using the formula: time = distance / relative speed.

Solution

Based on the above analysis, the answers to the given questions are as follows:

- The distance between the trains after two hours is 300 km. - The time it takes for the trains to meet is 3.75 hours.

Please note that the above calculations assume that the trains maintain a constant speed throughout the journey and do not consider any other factors that may affect the actual distance or time of the trains' meeting.

Let me know if you need any further assistance!