A Playground Carousel Is Rotating About Its Center

question 63

Multiple Choice

A playground carousel is rotating about its center.The radius of the carousel is 1.50 m,its initial angular speed is 3.14 rad/s and its moment of inertia is 125 kg m².A 40.0-kg person climbs onto the carousel near its outer edge.What is the angular speed of the carousel after the person climbs aboard?

• A)1.41 rad/s
• B)1.57 rad/s
• C)1.83 rad/s
• D)3.14 rad/s

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