# What is the relationship between Force and Speed for something moving in a circle at constant speed? What about Force and Speed2? What is the constant of proportionality (including units) in the Force vs. Speed2 graph? Make sure to show HOW YOU ARRIVED AT YOUR ANSWER. Multiply your results from the previous question by the radius (in meters). Include the number and UNITS. Make sure to show HOW YOU ARRIVED AT YOUR ANSWER. What does the number you obtained for the previous question represent?

**LAB: UNIFORM CIRCULAR MOTION **

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**You can watch ****this YouTube video**** showing some random physics instructor demonstrating what you would have done in the lab. **

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**The data you would have collected is in red. Build a spreadsheet to complete the data table and graph the relationships to help answer Questions 1-4. **

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**Complete the assigned Canvas Questions and upload your spreadsheet to Canvas.**

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** Data**:

Mass of one washer (g):__ 5.2 g __ Radius (m):__ 0.5 m __

Mass of rubber stopper (kg):__ 14g __

DATA |
CALCULATIONS |
|||||

# of Washers |
Time for 10 Revolutions (sec.) |
Period (Time for 1 Revolution) (sec.) |
Total Mass of Washers (kg) |
Weight of Washers = F |
Speed (m/s) |
Speed^2 |

24 | 4.61 | 0.461 | 0.124 | 1.224 | 6.81 | 46.6 |

21 | 5.04 | |||||

18 | 5.43 | |||||

15 | 6.03 | |||||

12 | 6.55 |

**You need NOT answer the questions on this sheet. They appear in the assigned Canvas questions.**

__Questions__**:**

- What is the relationship between Force and Speed for something moving in a circle at constant speed? What about Force and Speed
^{2}?

- What is the constant of proportionality (including units) in the Force vs. Speed
^{2}graph? Make sure to show HOW YOU ARRIVED AT YOUR ANSWER.

- Multiply your results from the previous question by the radius (in meters). Include the number and UNITS. Make sure to show HOW YOU ARRIVED AT YOUR ANSWER.

- What does the number you obtained for the previous question represent?

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