Question

Орёл и сокол полетели из одной точки в противоположных направлениях . Через какое время расстояние между ними станет равным километру, если скорость орла - 30 м /с, а скорость сокола - 20 м/с?

Answer 1

1 км - 1000м
20+30=50(м/с)
1000:50=20(с)
Ответ: через 20 секунд расстояние между ними будет равно одному км.

Answer 2

1км=1000м
1000:(30+20)=20

Answer 3

Problem Analysis

We are given that an eagle and a falcon start flying from the same point in opposite directions. The eagle has a speed of 30 m/s, and the falcon has a speed of 20 m/s. We need to determine the time it takes for the distance between them to become 1 kilometer.

Solution

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

Let's assume that the time it takes for the distance between the eagle and the falcon to become 1 kilometer is t.

The distance traveled by the eagle in time t is given by: distance_eagle = speed_eagle × t.

The distance traveled by the falcon in time t is given by: distance_falcon = speed_falcon × t.

Since they are flying in opposite directions, the total distance between them is the sum of the distances traveled by the eagle and the falcon: distance_total = distance_eagle + distance_falcon.

We can substitute the values into the equation and solve for t:

1 kilometer = (speed_eagle × t) + (speed_falcon × t).

Now we can solve for t:

1 kilometer = (30 m/s × t) + (20 m/s × t).

Simplifying the equation:

1 kilometer = 50 m/s × t.

Dividing both sides of the equation by 50 m/s:

t = 1 kilometer / 50 m/s.

Converting 1 kilometer to meters (1 kilometer = 1000 meters):

t = 1000 meters / 50 m/s.

Simplifying the equation:

t = 20 seconds.

Therefore, it will take 20 seconds for the distance between the eagle and the falcon to become 1 kilometer.

Answer

The distance between the eagle and the falcon will become 1 kilometer after 20 seconds.