Question

Автомобиль проезжает первые 3 км пути за 5 мин , а следующие 10 км за 10 мин . Чему равна средняя скорость автомобиля на всем пути ?

Answer 1

Vcp = S / t = (3+10) / (5+10) = 13 / 15 км/мин = (13/15 *60) = 52 км/ч

Answer 2

Calculating the Average Speed of the Car

To calculate the average speed of the car, we can use the formula:

Average Speed = Total Distance / Total Time

First, let's calculate the total distance the car traveled and the total time it took.

The car traveled the first 3 km in 5 minutes and the next 10 km in 10 minutes.

So, the total distance traveled is 3 km + 10 km = 13 km.

The total time taken is 5 minutes + 10 minutes = 15 minutes.

Now, we can calculate the average speed using the formula:

Average Speed = Total Distance / Total Time

Average Speed = 13 km / 15 minutes

Calculating the Average Speed

Using the given values, we can calculate the average speed of the car:

Average Speed = 13 km / 15 minutes

Average Speed = 0.8667 km/min

Therefore, the average speed of the car on the entire journey is 0.8667 km/min.