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A figure skater is spinning with an initial angular speed of 6.9rad/s. She then pulls her arms in, reducing her moment of inert...Asked by Timone
A figure skater is spinning with an initial angular speed of 5.6rad/s. He then pulls his arms in, reducing his moment of inertia to 0.31 times its original value. What is his angular speed after pulling in his arms?
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Answered by
bobpursley
conservation of momentum
I*5.6=(.31)I wf
wf=5.6/.31 rad/sec
I*5.6=(.31)I wf
wf=5.6/.31 rad/sec
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