The outstretched hands and arms of a figure skater preparing for a spin can be considered a slender rod pivoting about an axis through its center. (See the figure below (Figure 1).) When the skater's hands and arms are brought in and wrapped around his body to execute the spin, the hands and arms can be considered a thin- Part A The moment of inertia about the axis of rotation of the remainder of his body is constant and equal to 0.45 kg - m2. If the skater's original angular speed is 0.45 rev/s, what is his final angular speed? walled hollow cylinder. His hands and arms have a combined mass of 8.5 kg. When outstretched, they span 1.8 m; when wrapped, they form a cylinder of radius 25 cm Express your answer in revolutions per second. rev/s Figure 1 of 1 Submit Request Answer < Return to Assignment Provide Feedback
The outstretched hands and arms of a figure skater preparing for a spin can be considered a slender rod pivoting about an axis through its center. (See the figure below (Figure 1).) When the skater's hands and arms are brought in and wrapped around his body to execute the spin, the hands and arms can be considered a thin- Part A The moment of inertia about the axis of rotation of the remainder of his body is constant and equal to 0.45 kg - m2. If the skater's original angular speed is 0.45 rev/s, what is his final angular speed? walled hollow cylinder. His hands and arms have a combined mass of 8.5 kg. When outstretched, they span 1.8 m; when wrapped, they form a cylinder of radius 25 cm Express your answer in revolutions per second. rev/s Figure 1 of 1 Submit Request Answer < Return to Assignment Provide Feedback
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Transcribed Image Text:**Figure Skating Physics: Conservation of Angular Momentum**
**Text:**
The outstretched hands and arms of a figure skater preparing for a spin can be considered a slender rod pivoting about an axis through its center. (See the figure below.) When the skater's hands and arms are brought in and wrapped around his body to execute the spin, the hands and arms can be considered a thin-walled hollow cylinder. His hands and arms have a combined mass of 8.5 kg. When outstretched, they span 1.8 m; when wrapped, they form a cylinder of radius 25 cm.
**Diagram Description:**
The diagram shows a figure skater in two positions:
1. On the left, the skater is depicted with arms outstretched horizontally.
2. On the right, the skater has arms bent at the elbows and wrapped close to the body.
**Question:**
**Part A:**
The moment of inertia about the axis of rotation of the remainder of his body is constant and equal to 0.45 kg·m². If the skater's original angular speed is 0.45 rev/s, what is his final angular speed?
**Input Section:**
Express your answer in revolutions per second.
- Input box labeled with the symbol ω (angular speed) followed by 'rev/s'.
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