Question

If the unicorn seat on a merry-go-round is 5 feet from the center, and the merry-go-round completes a full rotation in 6 seconds, how many feet does the unicorn travel in one second?

Answer 1

To answer the question above, calculate first the circumference by the equation, C = 2πr. By substituting the known values,
C = (2)(π)(5 ft) = 31.416 ft
To determine the rate, divide the circumference by the time. The answer is approximately 5.24 ft/s.