Answered: a) By modelling the ballerina with her… | bartleby

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a) By modelling the ballerina with her arms and legs tucked in as a uniform
eylinder of mass 60kg and radius 13em, find her angular momentum after she
has tucked her arms in. The moment of inertia of a uniform eylinder of mass
M and radius R is given by I = ¿MR
b) Hence, estimate her moment of inertia with respect to her axis of rotation
when her arms and legs were outstretched.

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