Question

автобус їхав дві години зі швидкістю 60 кілометрів за годину а потім ще одну годину зі швидкістю 80 км за годину визначити середню швидкість його руху​

Answer 1

Ответ:

(60км/год+80км/год)÷2= 70

Відповідь:v сер.=70км/год

Answer 2

Calculation of Average Speed

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

Let's break down the information given:

- The bus traveled for 2 hours at a speed of 60 kilometers per hour. - Then, it traveled for 1 hour at a speed of 80 kilometers per hour.

To find the total distance traveled, we can add the distances covered during each time interval:

- Distance covered in the first 2 hours: 2 hours * 60 kilometers per hour = 120 kilometers - Distance covered in the next 1 hour: 1 hour * 80 kilometers per hour = 80 kilometers

The total distance traveled by the bus is 120 kilometers + 80 kilometers = 200 kilometers.

To find the total time taken, we can add the time intervals:

- Total time taken: 2 hours + 1 hour = 3 hours

Now, we can calculate the average speed by dividing the total distance by the total time:

- Average speed = Total distance / Total time = 200 kilometers / 3 hours = 66.67 kilometers per hour

Therefore, the average speed of the bus is approximately 66.67 kilometers per hour.

Please note that the sources provided did not contain relevant information for this specific calculation.