Physics, 16.04.2020 00:52 talarleonard0
An ice dancer with her arms stretched out starts into a spin with an angular velocity of 1.00 rad/s. Her moment of inertia with her arms stretched out is 2.48 kg m2. What is the increase in her rotational kinetic energy when she pulls in her arms to make her moment of inertia 1.40 kg m2?
A) 0.957 JB) 0.902 JC) 0.870 JD) 0.750 JE) 0.690 J
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