A figure skater stands on one spot on the ice (assumed frictionless) and spins around with her arms extended. When she pulls in her arms and lowers her upper body, she reduces her rotational moment of inertia, and her speed increases. Assume that the vertical component of her angular momentum is constant. Compared to her initial rotational kinetic energy, her rotational kinetic energy after she has pulled in her arms must be O larger O Not enough information is given to decide the same O smaller

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