Data Table 1: Constants for Varying Radius
Number of Washers 20
Mass of all Washers (kg) 0.1...
Data Table 1: Constants for Varying Radius
Number of Washers 20
Mass of all Washers (kg) 0.1194
Average Mass of Single Washer (kg) 0.00597
Rotating Mass (kg) 0.017
Hanging Mass (kg) 0.02989
Data Table 2: Varying Radius - Measurements and Calculations
Trial Radius (m) Time - 10 Time T- Circumference Velocity Fc (N) Fg (N) %Error
rev (s) 1 rev (s) (m) (m/s)
1 .18 3.28 1.13 1.13 3.45
2 0.545 4.54 0.545 3.42 7.53
3 0.29 14.11 0.411 1.82 4.43
4 0.25 14.05 .405 1.57 3.88
1. Record in Data Table 2.
2. Calculate the centripetal force experienced by the moving mass for each trial using the equation:
Fc = m movingv2 /r
3. Calculate the expected centripetal force for each trial by finding the gravitational force of the hanging mass:
Fg = Fc, theory = m hanging g
4. Calculate the percent error for each trial.
Percent Error = |Fg, – Fc|/gF x 100%
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