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August 21, 2014

Homework Help: physics

Posted by wally on Wednesday, February 6, 2013 at 6:25pm.

A trapeze artist sailing through the air rotates with a rotational speed of 0.9Ěrev/s.

If she contracts to reduce her rotational inertia to one sixth of what it was, what will her new rotational speed be? _____ rev/s?

Can she completely stop her rotation while still airborne? Choose one answer only.
1. yes, she must increase her rotational inertia
2. yes, she must decrease her rotational inertia
3. no, she cannot stop rotating
4. any of these are possible, depending on the skill of the artist

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