A 45 kg figure skater is spinning on the toes of her skates at 1.3 rev/s. Her arms are outstretched as far as they will go. In this orientation, the skater can be modeled as a cylindrical torso (40 kg, 20 cm average diameter, 160 cm tall) plus two rod-like arms (2.5 kg each, 71 cm long) attached to the outside of the torso. The skater then raises her arms straight above her head. In this latter orientation, she can be modeled as a 45 kg, 20-cm-diameter, 200-cm-tall cylinder. Part A What is her new rotation frequency, in revolutions per second? Express your answer in revolutions per second. ► View Available Hint(s) ولنا Submit Provide Feedback = IVE] ΑΣΦ ? rev/s

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Chapter1: Units, Trigonometry. And Vectors
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A 45 kg figure skater is spinning on the toes of her
skates at 1.3 rev/s. Her arms are outstretched as far
as they will go. In this orientation, the skater can be
modeled as a cylindrical torso (40 kg, 20 cm average
diameter, 160 cm tall) plus two rod-like arms (2.5 kg
each, 71 cm long) attached to the outside of the torso.
The skater then raises her arms straight above her
head. In this latter orientation, she can be modeled as
a 45 kg, 20-cm-diameter, 200-cm-tall cylinder.
Part A
What is her new rotation frequency, in revolutions per second?
Express your answer in revolutions per second.
► View Available Hint(s)
W₂
Submit
Provide Feedback
ΑΣΦ
?
rev/s
Transcribed Image Text:A 45 kg figure skater is spinning on the toes of her skates at 1.3 rev/s. Her arms are outstretched as far as they will go. In this orientation, the skater can be modeled as a cylindrical torso (40 kg, 20 cm average diameter, 160 cm tall) plus two rod-like arms (2.5 kg each, 71 cm long) attached to the outside of the torso. The skater then raises her arms straight above her head. In this latter orientation, she can be modeled as a 45 kg, 20-cm-diameter, 200-cm-tall cylinder. Part A What is her new rotation frequency, in revolutions per second? Express your answer in revolutions per second. ► View Available Hint(s) W₂ Submit Provide Feedback ΑΣΦ ? rev/s
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