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Tarzan has foolishly gotten himself into another scrape with the animals and must be rescued once again by Jane. The 60.0{\rm kg} Jane starts from rest at a height of 4.50{\rm m} in the trees and swings down to the ground using a thin, but very rigid, 32.0{\rm kg} vine 7.50{\rm m} long. She arrives just in time to snatch the 72.0{\rm kg} Tarzan from the jaws of an angry hippopotamus. What is Jane's (and the vine's) angular speed?

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