Question

Электропоезд тправился из города в 9ч 15 мин и прибыл на конечную станцию в 10 ч 12 мин По пути он делал остановку на каждой из 12 промежуточной станций в среднем на 35 с сколько времени электропоезд находился в движение от города до конечной станций? С какой скоростью он двигался ,если известно что расстояние от города до конечной станции 48км?

Answer 1

10 ч. 12 мин. -9 ч. 15 мин.= 57 мин.- потратил на путь

12*35=420 сек. (7 мин.)- потратил на остановки

57-7=50 мин.- находился в движении

48 км= 48000 м

48000/50=960 м/мин.- скорость движения

Answer 2

1)35с*12=420 с=7 мин потратил на остановки

2)от 9ч15 мин до 10ч12 мин=57 мин весь путь с остановками

57-7=50 мин в движении без остановок

V=S/t=48000/50=960 м/мин

 

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Answer 3

Calculation of the Time Spent in Motion

To calculate the time the electric train spent in motion from the city to the final station, we need to subtract the time spent on the intermediate stops from the total travel time.

The train departed from the city at 9:15 AM and arrived at the final station at 10:12 AM. We know that the train made stops at each of the 12 intermediate stations, with an average stop time of 35 seconds per station.

To calculate the time spent on the intermediate stops, we multiply the average stop time by the number of intermediate stations:

35 seconds/station * 12 stations = 420 seconds

Now, we subtract the time spent on the intermediate stops from the total travel time:

10:12 AM - 9:15 AM = 57 minutes = 57 * 60 seconds = 3420 seconds

Time spent in motion = Total travel time - Time spent on intermediate stops = 3420 seconds - 420 seconds = 3000 seconds

Therefore, the electric train spent 3000 seconds (or 50 minutes) in motion from the city to the final station.

Calculation of the Speed of the Electric Train

To calculate the speed of the electric train, we need to divide the distance traveled by the time spent in motion.

The distance from the city to the final station is given as 48 km.

Speed = Distance / Time

Converting the time spent in motion from seconds to hours:

3000 seconds = 3000 / 3600 hours = 0.8333 hours

Now, we can calculate the speed:

Speed = 48 km / 0.8333 hours ≈ 57.6 km/h

Therefore, the electric train was moving at an approximate speed of 57.6 km/h from the city to the final station.

Please note that the calculations provided above are based on the information given and may not account for other factors that could affect the actual travel time or speed of the train.