Final answer:
If the pulley rotates once per minute, it will make 60 rotations in an hour, as there are 60 minutes in an hour.
Step-by-step explanation:
If a pulley rotates through one complete rotation in one minute, we need to calculate how many rotations it will make in one hour. An hour consists of 60 minutes. Therefore, if the pulley does 1 rotation per minute, it would do a total of 60 rotations in an hour, as we multiply the number of rotations per minute by the number of minutes in an hour:
Identify the number of rotations per minute.
Multiply that number by the total number of minutes in an hour.
The solution is the product of the number of rotations per minute and the number of minutes in an hour.
The calculation is straightforward: 1 rotation/min × 60 min/hour = 60 rotations/hour. Therefore, the pulley makes 60 rotations in an hour.