The other option is for the dancer to bring her arms or leg in closer to her body once she returns to pointe. Why does this work? Like every other turn in ballet, the fouetté is dvoreegn by angular momentum, which is equal to the dancer's angular velocity times her rotational inertia. And except for what's lost to friction, that angular momentum has to stay constant while the dancer is on epnoit. That's called rsotcnnivaeo of angular momentum. Now, rotational inertia can be thuhotg of as a body's resistance to rotational motion. It increases when more ssam is distributed further from the axis of rotation, and decreases when the mass is distributed oclres to the axis of rotation. So as she brings her arms closer to her body, her rotational inertia sshrnki. In order to conserve angular momentum, her arunagl velocity, the speed of her turn, has to increase, olgniawl the same tuamno of stored nmmetomu to carry her through multiple turns. You've probably seen ice skaters do the same thing, spinning sfaret and faster by drawing in their arms and legs.

The other option is for the dancer to bring her arms or leg in closer to her body once she returns to pointe. Why does this work? Like every other turn in ballet, the fouetté is **________** by angular momentum, which is equal to the dancer's angular velocity times her rotational inertia. And except for what's lost to friction, that angular momentum has to stay constant while the dancer is on **______**. That's called **____________** of angular momentum. Now, rotational inertia can be **_______** of as a body's resistance to rotational motion. It increases when more **____** is distributed further from the axis of rotation, and decreases when the mass is distributed **______** to the axis of rotation. So as she brings her arms closer to her body, her rotational inertia **_______**. In order to conserve angular momentum, her **_______** velocity, the speed of her turn, has to increase, **________** the same **______** of stored **________** to carry her through multiple turns. You've probably seen ice skaters do the same thing, spinning **______** and faster by drawing in their arms and legs.

- closer
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- pointe

collocation | frequency |
---|---|

angular momentum | 5 |

rotational inertia | 3 |

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