Question

Взрослый человек при ходьбе делает за три минуты 360 шагов длиной по 75 см, а при беге наибольшая скорость 10 м/c. На сколько метров при беге человек передвигается больше чем при ходьбе за 1 сек? За 1 мин?

Answer 1

t=3 мин=180 сек

1)360*75см=27000см = 270м- длина 360 шагов

2)270/180=1,5 м/с скорость при ходьбе

3)10-1,5=8,5 метров (на 8,5 м при беге человек передвигается больше чем при ходьбе за 1 сек)

переводим в минуты:

1,5 м/с=90 м/мин

10 м/с=600 м/мин

4)600-90=510 метров (на 510 м при беге человек передвигается больше чем при ходьбе за 1мин.)

Ответ 8,5м за 1сек    и    510 м за 1 мин

 

Answer 2

Calculation of Distance Covered in Walking and Running

To calculate the distance covered in walking and running, we need to consider the number of steps taken and the length of each step.

Given: - Walking: 360 steps in 3 minutes, with each step measuring 75 cm. - Running: Maximum speed of 10 m/s.

Distance Covered in Walking

To calculate the distance covered in walking, we can use the formula:

Distance = Number of Steps x Length of Each Step

Substituting the given values: - Number of Steps: 360 - Length of Each Step: 75 cm

Distance Covered in Walking = 360 steps x 75 cm = 27,000 cm

Distance Covered in Running

To calculate the distance covered in running, we need to know the time taken for each step. Since we are given the maximum speed of 10 m/s, we can calculate the time taken for each step using the formula:

Time per Step = 1 / Speed

Substituting the given value: - Speed: 10 m/s

Time per Step = 1 / 10 = 0.1 seconds

Now, we can calculate the distance covered in running using the formula:

Distance = Speed x Time

Substituting the given values: - Speed: 10 m/s - Time: 0.1 seconds

Distance Covered in Running = 10 m/s x 0.1 seconds = 1 meter

Difference in Distance Covered

To find the difference in distance covered between running and walking in 1 second, we subtract the distance covered in walking from the distance covered in running:

Difference = Distance Covered in Running - Distance Covered in Walking

Substituting the calculated values: - Distance Covered in Running: 1 meter - Distance Covered in Walking: 27,000 cm (or 270 meters)

Difference in Distance Covered = 1 meter - 270 meters = -269 meters

The negative value indicates that the person covers 269 meters less in running compared to walking in 1 second.

Difference in Distance Covered in 1 Minute

To find the difference in distance covered between running and walking in 1 minute, we multiply the difference in distance covered in 1 second by 60:

Difference in Distance Covered in 1 Minute = Difference in Distance Covered x 60

Substituting the calculated value: - Difference in Distance Covered: -269 meters

Difference in Distance Covered in 1 Minute = -269 meters x 60 = -16,140 meters

The negative value indicates that the person covers 16,140 meters less in running compared to walking in 1 minute.

Please note that the negative values indicate that the person covers less distance in running compared to walking.