Question

Два автомобиля выехали на встречу к друг-другу. Скорость первого автомобиля 60км/ч, скорость второго 90км/ч. После начала дивжения через 30 минут какое расстояние они проехали?

Answer 1

S = v * t      t = 30 мин = 0,5 ч   

60 + 90 = 150 (км/ч) - скорость сближения двух автомобилей за 1 час

S = 150 * 0,5 = 75 (км) - проедут два автомобиля за полчаса

Ответ: 75 км

Answer 2

1)30мин.=0.5ч
2)60*0,5=30км/ч  -первый автомобиль
3)90*0,5=45км/ч  -второй автомобиль

Answer 3

Problem Analysis

Two cars are traveling towards each other. The first car has a speed of 60 km/h, and the second car has a speed of 90 km/h. We need to calculate the distance they have traveled after 30 minutes.

Solution

To find the distance traveled by each car, we can use the formula:

Distance = Speed × Time

Let's calculate the distance traveled by each car.

1. The first car has a speed of 60 km/h. After 30 minutes (0.5 hours), the distance traveled by the first car is:

Distance of the first car = Speed × Time = 60 km/h × 0.5 h = 30 km

2. The second car has a speed of 90 km/h. After 30 minutes (0.5 hours), the distance traveled by the second car is:

Distance of the second car = Speed × Time = 90 km/h × 0.5 h = 45 km

Therefore, after 30 minutes, the first car has traveled 30 km, and the second car has traveled 45 km.

Answer

After 30 minutes, the first car has traveled 30 km, and the second car has traveled 45 km.