Question

Два автомобиля двигаются навстречу друг другу, причем один из них со скоростью 74 км в час. Чему равна скорость второго автомобиля, если они сближаются со скоростью 150 км в час?

Answer 1

1)150-74=76(км/ч) - скорость второго автомобиля
Ответ: 76 км/ч

Answer 2

Problem Analysis

We are given two cars moving towards each other. The first car is moving at a speed of 74 km/h. We need to find the speed of the second car.

Solution

To find the speed of the second car, we can use the concept of relative velocity. When two objects are moving towards each other, their relative velocity is the sum of their individual velocities.

Let's denote the speed of the second car as v km/h. Since the two cars are moving towards each other, their relative velocity is the sum of their speeds, which is equal to the rate at which they are approaching each other.

According to the problem, the rate at which the two cars are approaching each other is 150 km/h. Therefore, we can write the following equation:

74 km/h + v km/h = 150 km/h

To find the value of v, we can solve this equation:

v km/h = 150 km/h - 74 km/h

Simplifying the equation:

v km/h = 76 km/h

Therefore, the speed of the second car is 76 km/h.

Answer

The speed of the second car is 76 km/h.