Question

Из двух посёлков в одном направлении вышли два пешехода, расстояние между которыми 540 метров, первый вышел раньше на 2 секунды со скоростью 15 м/с , скорость первого 30 м/с. Через сколько второй пешеход догонит первого и на каком расстояние?

Answer 1

Ответ:

270+45 ответ поидее должен быть таким однако это не на 100% я уже все позабыл

Answer 2

Problem Analysis

We have two pedestrians walking in the same direction. The distance between them is 540 meters, and the first pedestrian started walking 2 seconds earlier than the second pedestrian. The first pedestrian has a speed of 15 m/s, while the second pedestrian has a speed of 30 m/s. We need to determine how long it will take for the second pedestrian to catch up to the first pedestrian and at what distance.

Solution

To solve this problem, we can use the formula:

Distance = Speed × Time

Let's assume that the second pedestrian catches up to the first pedestrian after time 't' seconds. At that time, the first pedestrian would have covered a distance of 15t meters, and the second pedestrian would have covered a distance of 30(t-2) meters.

Since the distance between them is 540 meters, we can set up the following equation:

15t + 540 = 30(t-2)

Now, let's solve this equation to find the value of 't'.

Calculation

15t + 540 = 30(t-2)

15t + 540 = 30t - 60

60 + 540 = 30t - 15t

600 = 15t

t = 600 / 15

t = 40

Therefore, it will take the second pedestrian 40 seconds to catch up to the first pedestrian.

To find the distance at which the second pedestrian catches up to the first pedestrian, we can substitute the value of 't' into the equation for the distance covered by the second pedestrian:

Distance = 30(t-2)

Distance = 30(40-2)

Distance = 30(38)

Distance = 1140 meters

Therefore, the second pedestrian will catch up to the first pedestrian after 40 seconds, at a distance of 1140 meters.

Answer

The second pedestrian will catch up to the first pedestrian after 40 seconds, at a distance of 1140 meters.

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