Question

прошу очень Трамвай прошел первые 4 км м со средней скоростью 144 км/ч, следующие 3 км – со скоростью 90 км/ч . Определите среднюю скорость на всем пути? ​

Answer 1

Ответ:

перепиши просто и все, вроде бы так

Answer 2

Calculation of Average Speed

To determine the average speed for the entire journey, we need to calculate the total distance traveled and the total time taken.

The tram traveled the first 4 km at a speed of 144 km/h and the next 3 km at a speed of 90 km/h.

To calculate the total distance, we add the distances traveled at each speed: 4 km + 3 km = 7 km.

To calculate the total time, we divide the distance traveled at each speed by the respective speed and then sum the times:

- Time taken for the first 4 km = 4 km / 144 km/h = 0.0278 hours - Time taken for the next 3 km = 3 km / 90 km/h = 0.0333 hours

Total time taken = 0.0278 hours + 0.0333 hours = 0.0611 hours.

To calculate the average speed, we divide the total distance by the total time:

Average speed = 7 km / 0.0611 hours ≈ 114.38 km/h.

Therefore, the average speed for the entire journey is approximately 114.38 km/h.