Question

1) З пункту А одночасно у протилежних напрямах виїхали два потяги.Дослідіть, через який час відстань між ними стане більша ніж 400 км залежно від їх швидкостей

Answer 1

Ответ:

досліди я хзхззззз

Объяснение:

бо там так пише

Answer 2

Problem Analysis

We have two trains traveling in opposite directions from point A. We need to determine the time it takes for the distance between them to become greater than 400 km, depending on their speeds.

Solution

To solve this problem, we need to consider the relative speed of the two trains. The relative speed is the sum of their individual speeds since they are moving in opposite directions.

Let's assume the speed of the first train is v1 and the speed of the second train is v2. The relative speed of the two trains is then given by (v1 + v2).

The distance between the two trains will increase at this relative speed. We can calculate the time it takes for the distance to become greater than 400 km by dividing the distance by the relative speed:

Time = Distance / Relative Speed

Let's calculate the time using this formula.

Calculation

Given that the distance between the two trains needs to be greater than 400 km, we have:

Distance = 400 km

We also need to know the speeds of the two trains. Since the question does not provide specific values for the speeds, we cannot calculate the exact time. However, we can provide a general formula for the time in terms of the speeds of the two trains.

Let's assume the speed of the first train is v1 km/h and the speed of the second train is v2 km/h. The relative speed of the two trains is then given by (v1 + v2) km/h.

Using the formula mentioned earlier, the time it takes for the distance to become greater than 400 km is:

Time = Distance / Relative Speed

Substituting the values, we get:

Time = 400 km / (v1 + v2) km/h

Please provide the specific values for the speeds of the two trains, and I will be happy to calculate the time for you.