9
QuizMultiple Choice

Centripetal Acceleration — Quiz

Question 9 • Physics

Juan and Kuri are on a carousel. Juan is closer to the center of the carousel than Kuri. Which statement describes their tangential speeds?

Answer
A
Juan and Kuri complete one revolution in the same time, so they have the same speed.
B
Juan and Kuri move the same distance in one revolution, but Juan completes the revolution in less time and has a higher speed.
C
Juan and Kuri complete one revolution in the same time, but Juan travels a shorter distance and has a lower speed.
D
Juan moves a shorter distance in less time than Kuri, but their speeds are the same.

Explanation

Both riders rotate with the carousel, so they take the same time to complete one revolution. Juan is closer to the center, so his circular path has a smaller circumference and he travels a shorter distance in that time. Since speed is distance divided by time, Juan has the lower tangential speed; choice A describes this.

AI-written and checked against the verified answer.

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