CBSE Class 11-science Answered
Why does a ballet dancer fold her arms while spinning?
Asked by Topperlearning User | 06 Aug, 2014, 09:37: AM
Expert Answer
Ballet dancer while performing, fold her arms to spin faster. This act involves the use of rotational motion i.e. when the dancer folds her arm while spinning, the moment of inertia decreases. Since we know
To keep the L constant the angular velocity 
increases. And hence ballet dancer spins faster there by enhancing the performance.
increases. And hence ballet dancer spins faster there by enhancing the performance.
Answered by | 06 Aug, 2014, 11:37: AM
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