University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter11: Angular Momentum
Section: Chapter Questions
Problem 87AP: A potter’s disk spins from rest up to 10 rev/s in 15 s. The disk has a mass 3.0 kg and radius 30.0...
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(II) A diver (such as the one shown in Fig. 8–28) can reduce
her moment of inertia by a factor of about 3.5 when changing
from the straight position to the tuck position. If she makes
2.0 rotations in 1.5 s when in the tuck position, what is her
angular speed (rev /s) when in the straight position?
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