Question

Два лыжника вышли одновременно из одного пункта в противоположных направлениях.Скорость одного лыжника 15км/ч,а другого 10 км/ч.На сколько километров они удалятся друг от друга за 1 час?за 2 часа?за 3 часа?

Answer 1

1)15+10=25(км/ч)-скорость отдаления.
2)25*1=25(км)-лыжники отдалятся за 1 час.
3)25*2=50(км)лыжники отдалятся за 2 часа.
4)25*3=75(км)-лыжники отдалятся за 3 часа.
ответ:25 км, 50 км, 75 км.

Answer 2

Calculation of Distance between Two Skiers

To calculate the distance between two skiers who start simultaneously from the same point in opposite directions, we need to determine their relative speed and the time elapsed.

Given: - Speed of one skier: 15 km/h - Speed of the other skier: 10 km/h

We can calculate the distance between them for different time intervals:

For 1 hour: - The skier with a speed of 15 km/h will cover a distance of 15 km in 1 hour. - The skier with a speed of 10 km/h will cover a distance of 10 km in 1 hour. - Therefore, the distance between them after 1 hour will be the sum of their distances: 15 km + 10 km = 25 km. For 2 hours: - The skier with a speed of 15 km/h will cover a distance of 15 km/h * 2 h = 30 km. - The skier with a speed of 10 km/h will cover a distance of 10 km/h * 2 h = 20 km. - Therefore, the distance between them after 2 hours will be the sum of their distances: 30 km + 20 km = 50 km. For 3 hours: - The skier with a speed of 15 km/h will cover a distance of 15 km/h * 3 h = 45 km. - The skier with a speed of 10 km/h will cover a distance of 10 km/h * 3 h = 30 km. - Therefore, the distance between them after 3 hours will be the sum of their distances: 45 km + 30 km = 75 km. To summarize: - After 1 hour, the skiers will be 25 km apart. - After 2 hours, the skiers will be 50 km apart. - After 3 hours, the skiers will be 75 km apart.

Please note that these calculations assume that the skiers maintain a constant speed throughout the given time intervals.

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