Question
A diver tucks her body in midflight, decreasing her moment of inertia by a factor of two. By what factor does her angular speed change?
Step 1
This can be written as: \[L_{initial} = L_{final}\] Show more…
Show all steps
Your feedback will help us improve your experience
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Divers change their body position in midair while rotating about their center of mass. In one dive, the diver leaves the board with her body nearly straight, then tucks into a somersault position. If the moment of inertia of the diver in a straight position is $14 \mathrm{kg} \cdot \mathrm{m}^{2}$ and in a tucked position is $4.0 \mathrm{kg} \cdot \mathrm{m}^{2},$ by what factor does her angular speed increase?
Divers change their body position in midair while rotating about their center of mass. In one dive, the diver leaves the board with her body nearly straight, then tucks into a somersault position. If the moment of inertia of the diver in a straight position is $14 \mathrm{kg} \cdot \mathrm{m}^{2}$ and in a tucked position is $4.0 \mathrm{kg} \cdot \mathrm{m}^{2},$ by what factor is her angular velocity when tucked greater than when straight?
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD