A ballerina begins a tour jete (Fig. 11-19a) with angular
Chapter 11, Problem 64(choose chapter or problem)
A ballerina begins a tour jete (Fig. 11-19a) with angular speed Wi and a rotational inertia consisting of two parts: ~eg = 1.44 kg mZfor her leg extended outward at angle (J = 90.0 to her body and .4runk = 0.660 kg mZ for the rest of her body (pri- marily her trunk). Near her maximum height she holds both legs at angle e = 30.0 to her body and has angular speed wf (Fig. 11- 19b). Assuming that ftrunk has not changed, what is the ratio Wf/Wi?
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