Question

3. Два катера вышли одновременно навстречу друг другу из точек А и В расстояние между которыми равно 160 км. Скорость одного катера 27 км/ч, а скорость второго 14 км/ч. Найдите на каком расстоянии друг от друга будут 2 катера через 3 часа пути, если скорость течения рек авна 2 км/ч. -) 4 км Срочно

Answer 1

Ответ:

сори , что искала в инете

Answer 2

Первый катер проедет за 3 часа 27км/ч*3-2км/ч*3(течение воды, потому что предположим, что он плывёт против течения) = 75км

Второй катер проедет за три часа 14км/ч*3+2км/ч*3(плывет по течению) =48ккм

S между катерами = 75км - 48км = 27 км

Ответ:27км

Answer 3

Problem Analysis

We are given two boats that start simultaneously from points A and B and are moving towards each other. The distance between points A and B is 160 km. The speed of one boat is 27 km/h, and the speed of the other boat is 14 km/h. We need to find the distance between the two boats after 3 hours of travel, considering that the river current is flowing at a speed of 2 km/h.

Solution

To find the distance between the two boats after 3 hours of travel, we need to consider the relative speed of the boats. The relative speed is the sum of the speeds of the two boats.

Let's calculate the distance traveled by each boat after 3 hours:

- Boat 1: Distance = Speed * Time = 27 km/h * 3 h = 81 km - Boat 2: Distance = Speed * Time = 14 km/h * 3 h = 42 km

Now, let's calculate the distance between the two boats. Since they are moving towards each other, we can subtract the distance traveled by one boat from the total distance between points A and B:

Total distance between A and B = 160 km

Distance between the two boats after 3 hours = Total distance - Distance traveled by Boat 1 - Distance traveled by Boat 2

Distance between the two boats after 3 hours = 160 km - 81 km - 42 km = 37 km

Therefore, the two boats will be 37 km apart after 3 hours of travel.

Answer: The two boats will be 37 km apart after 3 hours of travel.