Question

Трамвай прошел перве 100 м со скоростью 18 км/ч, а следующие 200 м со скоростью 36 км/ч. чему равна средняя скорость пути?

Answer 1

Найдем время на первом и втором участке
t1=100/5=20 с
t2=200/10=20 c
Найдем среднюю скорость V= (S1+S2)/(t1+t2)=300/40=7,5 м\с=27 км/ч

Answer 2

Calculating Average Speed of the Tram:

To calculate the average speed of the tram, we can use the formula for average speed, which is the total distance traveled divided by the total time taken.

The tram traveled the first 100 meters at a speed of 18 km/h and the next 200 meters at a speed of 36 km/h.

Using the formula for average speed, we can calculate the average speed of the tram for the entire journey.

Calculation:

The total distance traveled by the tram is 100 meters + 200 meters = 300 meters.

The time taken to travel the first 100 meters can be calculated using the formula: time = distance / speed. - For the first 100 meters: time = 100 / (18 km/h).

The time taken to travel the next 200 meters can also be calculated using the same formula: - For the next 200 meters: time = 200 / (36 km/h).

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

Using the total distance and total time, we can calculate the average speed of the tram for the entire journey.

Result:

The average speed of the tram for the entire journey is 24 km/h.

This calculation is based on the given speeds and distances for the tram's journey