Question

Из двух населенных пунктов расстояние между которыми 60км,одновременно навстречу друг другу вышли два пешехода. Скорость первого равна 6км в час,а скорость второгосоставляет 2/3 скорости первого.Через какое время после выхода они встретятся? На каком расстоянии друг от друга будут пешеходы через 2часа после выхода?

Answer 1

1)6+6:3×2=10(км/ч)- скорость сбл.
2)60:10=6(ч)- T
3)60-10×2=40(км)-S через 2часа

Answer 2

Problem Analysis

We have two pedestrians walking towards each other from two different towns. The distance between the towns is 60 km. The first pedestrian's speed is 6 km/h, while the second pedestrian's speed is 2/3 of the first pedestrian's speed. We need to find out when they will meet and the distance between them after 2 hours.

Solution

To solve this problem, we can use the formula: time = distance / speed.

Let's calculate the time it takes for the pedestrians to meet.

The first pedestrian's speed is 6 km/h, so the time it takes for the first pedestrian to cover the distance of 60 km is: time1 = distance / speed1 = 60 km / 6 km/h = 10 hours.

The second pedestrian's speed is 2/3 of the first pedestrian's speed, which is 2/3 * 6 km/h = 4 km/h. So, the time it takes for the second pedestrian to cover the distance of 60 km is: time2 = distance / speed2 = 60 km / 4 km/h = 15 hours.

Since they started walking at the same time, they will meet after the shorter time, which is 10 hours.

Now, let's calculate the distance between the pedestrians after 2 hours.

The first pedestrian's speed is 6 km/h, so the distance covered by the first pedestrian in 2 hours is: distance1 = speed1 * time = 6 km/h * 2 hours = 12 km.

The second pedestrian's speed is 4 km/h, so the distance covered by the second pedestrian in 2 hours is: distance2 = speed2 * time = 4 km/h * 2 hours = 8 km.

The distance between the pedestrians after 2 hours is the sum of the distances covered by each pedestrian: total distance = distance1 + distance2 = 12 km + 8 km = 20 km.

Therefore, after 2 hours, the pedestrians will be 20 km apart.

To summarize: - The pedestrians will meet after 10 hours. - After 2 hours, they will be 20 km apart.

Please let me know if anything is unclear or if you need further assistance!