Rotational speed measures the number of revolutions that an object travels in a time interval. In the diagram of a clock below, there are minute and hour hands, and the time interval is one hour.
The minute hand travels in a clockwise direction around the clock, returning to the twelve after 60 minutes have passed. The hour hand also travels in a clockwise direction from 5 to 6 in 60 minutes.
Based on the information and diagram, which statement is most accurate?
A . The hour hand has a greater rotational speed than the minute hand.
B . The hour hand’s rotational speed increases each hour.
C . The minute hand and hour hand have identical rotational speeds.
D . The minute hand has a greater rotational speed than the hour hand.
E . The minute hand’s rotational speed increases each minute.
Answer: D
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