A woman, holding a dumbbell in each of her outstretched arms, stands at the center of...

 

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A woman, holding a dumbbell in each of her outstretched arms, stands at the center of a platform that is rotating at 1 rad/s. With her arms outstretched, the total moment of inertia the rotating system is 2 kgm². While the woman and platform rotate, the woman suddenly tucks her arms in and up to her body. After doing so, her angular velocity increases to 5 rad/s. What is the moment of inertia of the system after the woman tucks her arms in? A woman, holding a dumbbell in each of her outstretched arms, stands at the center of a platform that is rotating at 1 rad/s. With her arms outstretched, the total moment of inertia the rotating system is 2 kgm². While the woman and platform rotate, the woman suddenly tucks her arms in and up to her body. After doing so, her angular velocity increases to 5 rad/s. What is the moment of inertia of the system after the woman tucks her arms in?

Answer rating: 100% (QA)

We can solve this problem using the concept of conservation of angular ... View the full answer