Вопрос:

On the provided image, there is a graph with two lines, labeled '1' and '2'. The x-axis is labeled 't, ч' and the y-axis is labeled 'S, км'. Based on the visual information, what is the approximate speed of the object represented by line 1? Assume the starting point for line 1 is at (5, 150) and it ends at approximately (14, 210).

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Ответ:

Analysis of the Graph

The graph shows the distance (S, km) versus time (t, ч). Line 1 represents the movement of one object, and line 2 represents another.

We need to determine the speed of the object represented by line 1. Speed is calculated as the change in distance divided by the change in time ($$ ext{speed} = rac{\Delta S}{\Delta t}$$).

From the graph, we can approximate two points on line 1:

  • Point A: (5, 150)
  • Point B: (14, 210)

Now, we calculate the change in distance ($$\Delta S$$) and the change in time ($$\Delta t$$):

  • $$\Delta S = S_B - S_A = 210 \text{ км} - 150 \text{ км} = 60 \text{ км}$$
  • $$\Delta t = t_B - t_A = 14 \text{ ч} - 5 \text{ ч} = 9 \text{ ч}$$

Now, we can calculate the speed:

$$\text{Speed} = \frac{\Delta S}{\Delta t} = \frac{60 \text{ км}}{9 \text{ ч}}$$

Calculating the value:

$$\frac{60}{9} \approx 6.67$$

Therefore, the approximate speed of the object represented by line 1 is 6.67 km/h.

Ответ: 6.67 км/ч

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