Question

Вентилятор вращается со скоростью соответствующей частоте 600 об/мин. После выключения он останавливается через 0,5 минут. Сколько оборотов вентилятор сделает до полной остановки

Answer 1

300 оборотов т.к 0.5 минут = 30 сек    а это пол минуты. 

Answer 2

Calculation of Fan Revolutions

To calculate the number of revolutions a fan will make before coming to a complete stop, we need to know the time it takes for the fan to stop after being turned off and the initial speed of the fan.

In this case, the fan stops rotating after 0.5 minutes (or 30 seconds) and has an initial speed of 600 revolutions per minute (RPM).

To calculate the number of revolutions the fan will make before stopping, we can use the formula:

Number of revolutions = (Initial speed / 60) * Time to stop

Substituting the given values into the formula:

Number of revolutions = (600 RPM / 60) * 0.5 minutes

Simplifying the equation:

Number of revolutions = 10 revolutions

Therefore, the fan will make 10 revolutions before coming to a complete stop.