Question

Скорость поезда 20 метров в секунду. Длина окружности колеса его вагона равна 2,4 метра. Сколько оборотов совершает колесо вагона за 3 минуты?

Answer 1

Пишу подробно!

Найдем путь который поезд проедит за 3 минуты по формуле:

S=V*T=20*180=3600метров/cек - путь который проедет поезд за 3 минуты

Число оборотов = путь / длину окружности колеса

X=3600/2,4=1500

Ответ: 1500 оборотов за сделает поезд за 3 минуты

Answer 2

Calculation of the Number of Wheel Revolutions

To calculate the number of wheel revolutions the train wheel makes in 3 minutes, we need to determine the distance traveled by the train and divide it by the circumference of the wheel.

Given: - Train speed: 20 meters per second - Wheel circumference: 2.4 meters

To find the distance traveled by the train in 3 minutes, we need to convert the time from minutes to seconds. Since there are 60 seconds in a minute, 3 minutes is equal to 3 * 60 = 180 seconds.

The distance traveled by the train can be calculated using the formula:

Distance = Speed * Time

Substituting the given values:

Distance = 20 m/s * 180 s = 3600 meters

Now, we can calculate the number of wheel revolutions by dividing the distance traveled by the circumference of the wheel:

Number of Wheel Revolutions = Distance / Wheel Circumference

Substituting the values:

Number of Wheel Revolutions = 3600 meters / 2.4 meters = 1500 revolutions

Therefore, the wheel of the train makes 1500 revolutions in 3 minutes.