Question

Я могу составить уравнение по задаче на движение двух 4 объектов. Реши задачу уравнением. На старте скорость первого бегуна 4 м/с, а второго - 2 м/с. Через какое время расстояние между бегунами будет 80 мет- ров?​

Answer 1

Ответ:

через 40 секунд между бегунами будет расстояние 80 метров

Пошаговое объяснение:

Пусть х секунд время, через которое между бегунами будет расстояние 80 метров, тогда:

(4 - 2) * х = 80  ((4 - 2) - скорость  удаления друг от друга)

2х = 80

х = 80/2

х = 40 (сек) - через 40 сек между бегунами будет расстояние 80 метров

Answer 2

Solving the Problem Using Equations

To solve the problem of the motion of two runners, we can use the equation for distance, which is given by:

distance = speed × time

We have the initial speeds of the two runners: - The speed of the first runner is 4 m/s - The speed of the second runner is 2 m/s

We need to find the time it takes for the distance between the runners to be 80 meters.

Using the equation for distance, we can set up the following equations for the distances covered by the two runners:

For the first runner: distance1 = 4t

For the second runner: distance2 = 2t

Where t is the time in seconds.

We want to find the time when the distance between the runners is 80 meters, so we can set up the equation: 4t - 2t = 80

Solving for t will give us the time it takes for the distance between the runners to be 80 meters.

Calculating the Time

Let's solve the equation: 4t - 2t = 80

4t - 2t = 80 2t = 80 t = 40

So, it will take 40 seconds for the distance between the runners to be 80 meters.

This calculation is based on the given speeds and the equation for distance, and it shows that the time required for the distance between the runners to be 80 meters is 40 seconds