Question

Автомашина шла 3 ч со скоростью 53,5 км/ч, 2 ч со скоростью 62,3км/ч и 3 ч со скоростью 4 со скоростью 48,2 км/ч . Найдите среднюю скорость движения автомошины на всем пути

Answer 1

1) 53.5*3=160.5 км прошла машина со скоростью 53,5 км/ч
2) 62,3*2=124,6 км прошла машина со скоростью 62,3 км/ч
3) 48,2*4=192,8 км прошла машина со скоростью 48,2 км/ч
4) 160,5+124,6+192,8=477,9 км все расстояние
5) 3+2+4=9 ч все время
6) 477,9:9=53,1 км/ч средняя скорость
Ответ 53,1 км/ч

Answer 2

Calculating the Average Speed of a Car

To find the average speed of the car for the entire journey, we can use the formula:

Average Speed = Total Distance / Total Time

Given that the car traveled for 3 hours at a speed of 53.5 km/h, then for 2 hours at a speed of 62.3 km/h, and finally for 3 hours at a speed of 48.2 km/h, we can calculate the average speed using the provided information.

First, let's calculate the total distance traveled by the car.

The total distance can be calculated by adding the distances traveled at each speed. The distance traveled at a constant speed is given by the formula:

Distance = Speed × Time

Using this formula, we can calculate the total distance traveled by the car.

The total time is the sum of the individual times, which is 3 hours + 2 hours + 3 hours = 8 hours.

Now, let's calculate the average speed using the total distance and total time.

The average speed of the car for the entire journey is given by:

Average Speed = Total Distance / Total Time

Let's proceed with the calculations.