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Physics Lab 3-25

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3.25: Conservation of Angular Momentum

Data: Radial Distance (m) | Tangential Velocity (m/s) | Angular Momentum (kg-m^2/s) | 1.84m | 3.10(m/s) | 2.85 kg-m^2/s | 1.78m | 3.21(m/s) | 2.85 kg-m^2/s | 1.71m | 3.33(m/s) | 2.85 kg-m^2/s | 1.65m | 3.45(m/s) | 2.85 kg-m^2/s | 1.53m | 3.74(m/s) | 2.85 kg-m^2/s | 1.40m | 4.07(m/s) | 2.85 kg-m^2/s |

Graph:
Attached separately

Questions: 1. Using the data you have gathered and your knowledge of the law of conservation of angular momentum, explain the results for the angular momentum data column.
The results of the angular momentum column is that the data does not changed, which can be explained by the conservation of angular momentum. 2. Find line or curve of best fit. What is the constant for this graph? Refer to lesson 1.13 for tips.
The line of the best fit of this graph is y=mx+b, and the constant is the radial distance. 3. Using your knowledge of graphs, describe the relationship between radial distance and tangential velocity.
Radial distance and tangential velocity have an inverse proportional relationship, meaning that as one decreases the other increases. 4. Visit the following site: Conservation of Angular Momentum Demonstration. Play the video. Explain the changes in the woman’s speed as she moves her arms.
When the woman moves her arms closer to her body, she goes faster, and when she moves away she goes

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