Question

Помогите пж Автомобиль четверть пути проехал со скоростью v = 30 м/с, а остальной путь - со скоростью v, = 10 м/с. определите среднюю скорость автомобиля.​

Answer 1

30-10=20м/с
Ответ:средняя скорость автомобиля 20м/с

Answer 2

Calculation of Average Speed

To calculate the average speed of the car, we need to find the total distance traveled and the total time taken.

Let's assume that the total distance traveled by the car is d.

The car traveled the first quarter of the distance with a speed of v = 30 m/s. This means it covered a distance of d/4 with this speed.

The remaining three-quarters of the distance were covered with a speed of v = 10 m/s. This means the car covered a distance of (3/4)d with this speed.

To find the total distance traveled, we can add the distances covered at each speed:

d = (d/4) + (3/4)d

Simplifying the equation, we get:

d = (1/4)d + (3/4)d

d = d

This equation is true for any value of d, which means the total distance traveled by the car can be any value.

Since we don't have the exact value of the total distance, we cannot calculate the average speed of the car.