Question

ри машинки Двигаются по замкнутой трассе общей длиной 80 м. Скорость первой — 10 м/с, второй - 40 м/с, а третьей — среднее арифметическое между скоростями первой и второй. Каким должен быть самый большой промежуток времени между стартом двух из этих трёх машинок из одной точке, если все три машинки После прохождения трассы вернулись к этой же точке к одному и тому же времени?

Answer 1

Ответ:

14 сек

Объяснение: долго объяснять

Answer 2

Calculating the Time Gap between the Cars

To calculate the largest time gap between the start of any two of these three cars, we can use the concept of relative speed. The largest time gap will occur when the two cars have the maximum relative distance between them.

Given: - Length of the track, L = 80 m - Speed of the first car, V1 = 10 m/s - Speed of the second car, V2 = 40 m/s - Speed of the third car, V3 = (V1 + V2) / 2

Calculating the Time Taken by Each Car

First, let's calculate the time taken by each car to complete the track using the formula:

Time = Distance / Speed

For the first car: - Time taken by the first car, T1 = L / V1

For the second car: - Time taken by the second car, T2 = L / V2

For the third car: - Time taken by the third car, T3 = L / V3

Finding the Largest Time Gap

To find the largest time gap between the start of any two of these three cars, we need to compare the time taken by each pair of cars and find the maximum difference.

The largest time gap will be between the cars that take the longest and shortest times to complete the track.

Let's calculate the time taken by each car and find the largest time gap.