A ferris wheel completes 2 revolutions in 30 seconds. Determine how far it has travelled in 15 seconds. The radius of the ferris wheel is 10 m.

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If the Ferris wheel completes two revolutions in $30$ seconds, how many revolutions does the Ferris wheel complete in $15$ seconds? The radius of the Ferris wheel is 10 m. I'm stuck in this question, I'm not sure how to solve it, I would appreciate it if you could help me out here, thanks!

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Note that 2 revolutions in 30 seconds works out to 1 revolution every 15 seconds. The question asks the distance traveled in 15 seconds, which due to the previous calculation, works out to exactly 1 revolution.

The distance traveled in one revolution is the circumference of the wheel, which is $2 \times \pi \times 10$ m, that is $20\pi$ meter, nearly 62 m.