Question

Автомобиль первые 20 км проехал за 14 мин , а сдедуещие 20 км за 26 мин,. Чему оавна средняя скорость автомобиля на вс пути

Answer 1

V-?
t=14+26=40( весь час що їхав автомобіль)
S=20+20=40 (вся відстань)
V= 40:40=1 (км/хв)

Answer 2

Дано
S1=20 000 м
t1=840 c
S2=20 000м
t2=1560 c
Vср-?
Vср=(S1+S2)/(t1+t2)   Дерзай

Answer 3

Calculating Average Speed of the Car

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

Average Speed = Total Distance / Total Time

First, let's calculate the total distance and total time for the entire journey based on the given information.

1. The car traveled the first 20 km in 14 minutes. 2. The car traveled the next 20 km in 26 minutes.

Calculating Total Distance

The total distance traveled by the car is the sum of the distances covered in the two segments.

Total Distance = Distance Segment 1 + Distance Segment 2

Given that the car traveled 20 km in each segment, the total distance is:

Total Distance = 20 km + 20 km

Calculating Total Time

The total time taken for the entire journey is the sum of the times taken in the two segments.

Total Time = Time Segment 1 + Time Segment 2

Given that the car took 14 minutes for the first 20 km and 26 minutes for the next 20 km, the total time is:

Total Time = 14 minutes + 26 minutes

Now, let's calculate the average speed of the car using the formula:

Average Speed = Total Distance / Total Time

Calculation

Total Distance = 20 km + 20 km = 40 km

Total Time = 14 minutes + 26 minutes = 40 minutes

Average Speed = Total Distance / Total Time

Average Speed = 40 km / 40 minutes

Average Speed = 1 km/minute

So, the average speed of the car for the entire journey is 1 kilometer per minute.