Question

Крош и Бараш увидели вдалеке вспышку молнии. Крош услышал звук через 9 с после вспышки, а Бараш – на 7 с позже. Найдите максимально возможное при таких условиях расстояние между смешариками, если они находились на одной прямой с точкой, куда ударила молния. Ответ выразите в км, округлив до десятых. Считать, что скорость звука составляет 340 м/с, а свет распространяется мгновенно

Answer 1

340 * 9 = 3060
9+7=16 
16* 340 =5440
5440-3060=2380

Answer 2

Calculation of the Maximum Possible Distance

To calculate the maximum possible distance between Krosh and Barash, we need to consider the time it took for the sound of the thunder to reach each of them.

According to the information provided, Krosh heard the sound 9 seconds after the lightning flash, while Barash heard it 7 seconds later.

We can use the speed of sound to calculate the distance traveled by the sound during these time intervals. The speed of sound is given as 340 m/s.

Let's calculate the distances:

1. Krosh heard the sound 9 seconds after the lightning flash. Therefore, the sound traveled for 9 seconds at a speed of 340 m/s. The distance traveled by the sound is:

Distance_Krosh = Speed_of_sound * Time_Krosh = 340 m/s * 9 s = 3060 m

2. Barash heard the sound 7 seconds after the lightning flash. Therefore, the sound traveled for 7 seconds at a speed of 340 m/s. The distance traveled by the sound is:

Distance_Barash = Speed_of_sound * Time_Barash = 340 m/s * 7 s = 2380 m

Now, let's calculate the maximum possible distance between Krosh and Barash. Since they were on the same straight line with the point where the lightning struck, the maximum distance would be the sum of the distances traveled by the sound to reach each of them:

Maximum_distance = Distance_Krosh + Distance_Barash = 3060 m + 2380 m = 5440 m

Therefore, the maximum possible distance between Krosh and Barash, under the given conditions, is 5440 meters.