SOLVED: 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 11 s and the radius of the ride is 2.9 m.* What is the rider's centripetal acceleration, in m/s^2?* What is the rider's centripetal acceleration if the time for one rotation is halved?Exp

SOLVED: A playground merry-go-round has a radius of 2.40 m and a moment of inertia of 2100 kg-m² about a vertical axle through its center, and it turns with negligible friction. A child applies an 18.0 N force tangentially to the edge of the merry-go-round for 15.0 s.a) If the merry-go-round is initially at rest, what is its angular speed after this 15.0 s interval? [3 points]Answer:b) How much work did the child do on the merry-go-round? [2 points]Answer:c) What is the average power supplied b

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