Final answer:
The rotational speed of the minute hand on a clock that measures the minutes is 6 degrees per minute.
Step-by-step explanation:
The rotational speed of the minute hand on a clock can be determined by considering its angular velocity, which is measured in radians per second. A clock completes one full revolution (360 degrees) in 60 minutes, so the minute hand's angular velocity is:
Angular velocity = 360 degrees / 60 minutes = 6 degrees per minute
Therefore, the rotational speed of the minute hand on a clock that measures the minutes is 6 degrees per minute.