Question

Турист прошел 3 км за 1,5 ч, а затем 2 км за 1ч. Какова средняя скорость на всем пути? ответ выразите в метрах в секунду

Answer 1

3км-3000м
1,5ч-90мин.
2км-2000м
1ч-60мин
3000+2000(м)=5000метров
90+60(мин)=150минут
1,8М/С

Answer 2

Calculation of Average Speed

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

The tourist walked 3 km in 1.5 hours and then walked 2 km in 1 hour.

The total distance traveled is 3 km + 2 km = 5 km.

The total time taken is 1.5 hours + 1 hour = 2.5 hours.

To convert the average speed to meters per second, we need to convert the distance from kilometers to meters and the time from hours to seconds.

1 kilometer is equal to 1000 meters, and 1 hour is equal to 3600 seconds.

Therefore, the average speed in meters per second can be calculated as follows:

Average Speed = Total Distance / Total Time

Average Speed = (5 km * 1000 m/km) / (2.5 hours * 3600 s/hour)

Calculating the average speed:

Average Speed = (5000 m) / (9000 s)

Simplifying the calculation:

Average Speed = 5/9 m/s

Therefore, the average speed on the entire journey is 5/9 m/s.