Question

Две собаки одновременно бросились за кошкой Рыжик бежал со скоростью 15 м/с через 10 секунд отстал от Черныша на 30 м/с какой скоростью бежал Черныш?

Answer 1

Ответ:

20 км

Пошаговое объяснение:

Answer 2

Calculation of Cherneysh's Speed

To calculate Cherneysh's speed, we need to use the information provided in the question. According to the question, Ryzhik was running at a speed of 15 m/s and after 10 seconds, he was 30 m/s behind Cherneysh.

Let's assume that Cherneysh's speed is represented by x m/s.

After 10 seconds, Ryzhik was 30 m/s behind Cherneysh. This means that Cherneysh covered a distance of 30 m/s more than Ryzhik in those 10 seconds.

Using the formula distance = speed × time, we can calculate the distance covered by Cherneysh and Ryzhik in those 10 seconds.

For Ryzhik: Distance covered by Ryzhik = Speed of Ryzhik × Time = 15 m/s × 10 s = 150 m

For Cherneysh: Distance covered by Cherneysh = Speed of Cherneysh × Time = x m/s × 10 s = 10x m

According to the question, Cherneysh covered a distance of 30 m/s more than Ryzhik in those 10 seconds. So we can set up the following equation:

Distance covered by Cherneysh - Distance covered by Ryzhik = 30 m/s

10x m - 150 m = 30 m/s

Simplifying the equation:

10x - 150 = 30

10x = 30 + 150

10x = 180

x = 180 / 10

x = 18

Therefore, Cherneysh was running at a speed of 18 m/s.