The angular speed in radian/hour for the daily rotation of our earth is?
Correct answer: A. π/12 radian/hour
- A. π/12 radian/hour
- B. 12π radian/hour
- C. 24π radian/hour
- D. π/24 radian/hour
Explanation
The correct answer is π/12 radian/hour. To find the angular speed in radians, we recognize that one full rotation (2π radians) occurs in 24 hours. Thus, the angular speed can be calculated as:Angular speed = Total radians per rotation / Time in hours = 2π / 24 = π/12 radian/hour.
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