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Angular speed, physics, Physics
A ballerina begins a tour jete with angular speed ?i and a rotational inertia consisting of two parts: Ileg = 1.55 kg*m^2 for her leg extended outward at angle ? = 90.0 to her body and Itrunk = 0.518 kg*m^2 for the rest of her body (primarily her trunk). Near her maximum height she holds both legs at angle ? = 33.5 to her body and has angular speed ?f. Assuming that Itrunk has not changed, what is the ratio ?f/?i?
Posted Date: 3/13/2012 8:39:25 PM | Location : United States
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