Merry-go-rounds are a common ride in park playgrounds. The ride is a horizontal disk that rotates about a vertical axis at their 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 6.0 s and the diameter of the ride is 16 ft.

For this typical time, what is the speed of the rider in m/s? Express your answer in meters per second. V AEV O ? m /s Submit Request Answer Part B What is the rider's radial acceleration, in m/s27 Express your answer in meters per second squared. V AED + O 2 Grad Submit Request Answer
Part C What is the rider's radial acceleration if the time for one rotation is halved? Express your answer in meters per second squared. tad m/s2 Submit Request Answer