Question

два автомобиля движутся навстречу друг другу скорость 1-60км/ч 2-90км/ч , у заправочной станции они встречаются .Определите положение каждого автомобиля после встречи через 30 минут и расстояние между ними в этот момент

Answer 1

два автомобиля движутся навстречу друг другу скорость
v1=60км/ч
v2=90км/ч
после заправочной станции они движутся в противоположных направлениях
скорость удаления v =v1+v2 = 60+90 = 150 км/ч
за время t =30 мин = 0.5 час
расстояние между ними S = t*v = 0.5 *150 = 75 км

Answer 2

Problem Analysis

We have two cars moving towards each other. The first car is traveling at a speed of 60 km/h, and the second car is traveling at a speed of 90 km/h. They meet at a gas station. We need to determine the position of each car after 30 minutes and the distance between them at that moment.

Solution

To solve this problem, we can use the formula: distance = speed * time.

Let's calculate the distance traveled by each car after 30 minutes: - Car 1: distance_1 = speed_1 * time = 60 km/h * 0.5 h = 30 km - Car 2: distance_2 = speed_2 * time = 90 km/h * 0.5 h = 45 km

After 30 minutes, Car 1 will be 30 km away from the gas station, and Car 2 will be 45 km away from the gas station.

To find the distance between the two cars at that moment, we can subtract the distance traveled by Car 1 from the distance traveled by Car 2: - Distance between the two cars = distance_2 - distance_1 = 45 km - 30 km = 15 km

Answer

After 30 minutes, Car 1 will be 30 km away from the gas station, Car 2 will be 45 km away from the gas station, and the distance between them will be 15 km.