Question

Атлет участвует в соревнованиях, где нужно проплыть 2 км и пробежать 10 км. Сколько времени атлет будет проходить общую дистанцию, если он плывёт со скоростью 1 м/с, а бежит в 8 раз быстрее? Выразите ответ в секундах. Уложиться ли спортсмен в один час. Выберите правильный вариант ,,ДА" ,,НЕТ"​

Answer 1

Ответ:

Пошаговое объяснение:

1). 2 км=2000 м. 2000 м:1 м/с=2000 сек.- время плавания

2) 1*8=8 м /с - скорость бега

3). 10 км=10000 м.  10000 м:8 м/с=1250 сек. - время бега

4). 2000+1250=3250 сек. - время на всю дистанцию

Т. к 1ч=60 мин=3600 сек, а 3250<3600, то спортсмен уложится в 1 час -Да

Answer 2

Ответ:

Пошаговое объяснение:

ответ нет, так как там получится намного больше

Answer 3

Calculation of Total Time

To calculate the total time it will take for the athlete to complete the entire distance, we need to consider the swimming and running portions separately.

1. Swimming: - Distance: 2 km - Speed: 1 m/s

To find the time taken for swimming, we can use the formula: time = distance / speed.

Plugging in the values, we get: time = 2,000 m / 1 m/s = 2,000 seconds.

2. Running: - Distance: 10 km - Speed: 8 times faster than swimming speed (8 m/s)

To find the time taken for running, we can again use the formula: time = distance / speed.

Plugging in the values, we get: time = 10,000 m / 8 m/s = 1,250 seconds.

Now, we can calculate the total time by adding the time taken for swimming and running: 2,000 seconds + 1,250 seconds = 3,250 seconds.

Therefore, the athlete will take 3,250 seconds to complete the entire distance.

Conversion to Hours

To check if the athlete can complete the distance within one hour, we need to convert the total time from seconds to hours.

1 hour is equal to 3,600 seconds.

Converting 3,250 seconds to hours, we get: 3,250 seconds / 3,600 seconds/hour = 0.9028 hours.

Since 0.9028 hours is less than 1 hour, the athlete will be able to complete the distance within one hour.

Therefore, the correct answer is "ДА" (YES), the athlete will be able to complete the distance within one hour.

Please let me know if there is anything else I can help you with!