Merry-go-rounds are a common ride in park playgrounds. The ride is a horizontal disk that rotates about
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Question:
Merry-go-rounds are a common ride in park playgrounds. The ride is a horizontal disk that rotates about a vertical axis at its center. A rider sits at the outer edge of the disk and holds onto a metal bar while someone pushes on the ride to make it rotate. Suppose that a typical time for one rotation is 5.0 s and the diameter of the ride is 16 ft.
Part A
For this typical time, what is the speed of the rider, in m/s?
Express your answer in meters per second.
Part B
What is the rider’s radial acceleration, in m/s2?
Express your answer in meters per second squared.
Part C
What is the rider’s radial acceleration if the time for one rotation is halved?
Express your answer in meters per second square
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