Question

ПОМОГИТЕ ПОЖАЛУЙСТА!!!ОЧЕНЬ СРОЧНО!!!!!!!! Из двух городов , расстояние между которыми равно 42 км, одновременно в одном направлении выехали два автомобиля. Первый автомобиль двигался со скоростью 56 км / ч , второй автомобиль, ехавший позади, двигался со скоростью 70 км/ч. Через сколько часов после начала движения второй автомобиль догонит первый? Хоть это и не повлияет на ответ но сделайте желательно за 30 минут.

Answer 1

Второй автомобиль догонет первого приблезительно через два часа

Answer 2

Problem Analysis

We have two cars traveling in the same direction, with one car starting ahead of the other. The first car is traveling at a speed of 56 km/h, and the second car is traveling at a speed of 70 km/h. We need to determine how many hours it will take for the second car to catch up to the first car.

Solution

To solve this problem, we can use the concept of relative speed. The relative speed is the difference between the speeds of the two cars. In this case, the relative speed is 70 km/h - 56 km/h = 14 km/h.

The distance between the two cars is 42 km. To find the time it takes for the second car to catch up to the first car, we can divide the distance by the relative speed:

Time = Distance / Relative Speed

Substituting the values, we get:

Time = 42 km / 14 km/h = 3 hours

Therefore, it will take 3 hours for the second car to catch up to the first car.

Answer

The second car will catch up to the first car after 3 hours.

I hope this helps! Let me know if you have any further questions.