Question

Пешеход 4 идёт со скоростью 3 км/ч пешеход в в том же направлении со скоростью 3,5 км/ч сейчас расстояние между ними 1,5 кмкакое расстояние через 1, 2, 3, 4 часа? Пожалуйста!!!

Answer 1

Мне кажется , что это легко . просто 3 умножаем на 1 а потом на 2,3,4 .
Например 
3*1=3
3*2=6 и т.д

Answer 2

Problem Analysis

We have two pedestrians walking in the same direction. The first pedestrian is walking at a speed of 3 km/h, while the second pedestrian is walking at a speed of 3.5 km/h. The initial distance between them is 1.5 km. We need to calculate the distance between them after 1, 2, 3, and 4 hours.

Solution

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

Let's calculate the distance between the two pedestrians after each hour.

1. After 1 hour: - The first pedestrian will have traveled a distance of 3 km (3 km/h × 1 h). - The second pedestrian will have traveled a distance of 3.5 km (3.5 km/h × 1 h). - The initial distance between them was 1.5 km. - Therefore, the new distance between them after 1 hour will be: 1.5 km + 3 km - 3.5 km = 1 km.

2. After 2 hours: - The first pedestrian will have traveled a distance of 6 km (3 km/h × 2 h). - The second pedestrian will have traveled a distance of 7 km (3.5 km/h × 2 h). - The initial distance between them was 1.5 km. - Therefore, the new distance between them after 2 hours will be: 1.5 km + 6 km - 7 km = 0.5 km.

3. After 3 hours: - The first pedestrian will have traveled a distance of 9 km (3 km/h × 3 h). - The second pedestrian will have traveled a distance of 10.5 km (3.5 km/h × 3 h). - The initial distance between them was 1.5 km. - Therefore, the new distance between them after 3 hours will be: 1.5 km + 9 km - 10.5 km = 0 km.

4. After 4 hours: - The first pedestrian will have traveled a distance of 12 km (3 km/h × 4 h). - The second pedestrian will have traveled a distance of 14 km (3.5 km/h × 4 h). - The initial distance between them was 1.5 km. - Therefore, the new distance between them after 4 hours will be: 1.5 km + 12 km - 14 km = -0.5 km.

Summary

The distance between the two pedestrians after 1 hour is 1 km, after 2 hours is 0.5 km, after 3 hours is 0 km, and after 4 hours is -0.5 km. It's important to note that a negative distance indicates that the second pedestrian has overtaken the first pedestrian.

Please let me know if there's anything else I can help you with!