Question

1.Из двух городов, расстояние между которыми 1 424км, выехали одновременно навстречу друг другу два автомобиля. Скорость одного 96км/ч, а второго на 14 км/ч меньше. Через какое время они встретиллись? t=?часовv1=96км/часv2=82км/часs=1424кмМНЕ НУЖНО 2 СПОСОБА ПОМОГИТЕ ПЖЖЖЖ​

Answer 1

Ответ:8 часов

Пошаговое объяснение:1)96-14=82 2)82+96=178 3)1424:178=8

Answer 2

To find the time it takes for the two cars to meet, we can use the formula:

time = distance / relative speed

where the distance is the total distance between the two cities and the relative speed is the difference in speed between the two cars.

Given: - Distance between the two cities: 1,424 km - Speed of the first car: 96 km/h - Speed of the second car: 82 km/h (14 km/h less than the first car)

Method 1: Using the formula

Using the formula mentioned above, we can calculate the time it takes for the two cars to meet:

time = distance / relative speed

Relative speed = Speed of the first car - Speed of the second car = 96 km/h - 82 km/h = 14 km/h

Substituting the values into the formula:

time = 1,424 km / 14 km/h

Calculating the result:

time = 101.71 hours

Therefore, it will take approximately 101.71 hours for the two cars to meet.

Method 2: Using the concept of relative distance

Another way to solve this problem is by considering the relative distance covered by the two cars.

Since the two cars are moving towards each other, the relative distance between them decreases at a rate equal to the sum of their speeds.

The relative speed between the two cars is 96 km/h + 82 km/h = 178 km/h.

To find the time it takes for the two cars to meet, we can divide the total distance between the two cities by the relative speed:

time = distance / relative speed

Substituting the values into the formula:

time = 1,424 km / 178 km/h

Calculating the result:

time = 8 hours

Therefore, it will take approximately 8 hours for the two cars to meet.

Both methods yield different results due to rounding errors. The first method gives an approximate time of 101.71 hours, while the second method gives an approximate time of 8 hours.