Question

Собака бежит за кошкой. Расстояние между ними 30 метров. Через сколько секунд собака догонит кошку, если скорость собаки10м/с, а кошки 7м/с

Answer 1

Через три секунды

 собака догонит кошку

 

Answer 2

Calculation of the Time it Takes for the Dog to Catch the Cat

To calculate the time it takes for the dog to catch the cat, we can use the formula:

Time = Distance / Speed

Given that the distance between the dog and the cat is 30 meters, the speed of the dog is 10 m/s, and the speed of the cat is 7 m/s, we can substitute these values into the formula to find the time it takes for the dog to catch the cat.

Time = 30 meters / (10 m/s - 7 m/s)

Simplifying the equation:

Time = 30 meters / 3 m/s

Therefore, it will take the dog 10 seconds to catch the cat.